<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by DFIN XBRL Schema Document - http://www.dfinsolutions.com/ - on 11-06-2026 01:24:53 AM -->
<!-- Copyright(c) 2026 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<schema targetNamespace="http://www.funds.mfs/20260609" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:mstvi="http://www.funds.mfs/20260609" xmlns:dei="http://xbrl.sec.gov/dei/2025" xmlns:srt-types="http://fasb.org/srt-types/2025" xmlns:deprecated="http://www.xbrl.org/2009/role/deprecated" xmlns:dtr="http://www.xbrl.org/2009/dtr" xmlns:oef="http://xbrl.sec.gov/oef/2025" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:us-gaap="http://fasb.org/us-gaap/2025" xmlns:oef-pre="http://xbrl.sec.gov/oef-pre/2025" xmlns:oef-lab="http://xbrl.sec.gov/oef-lab/2025" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:country="http://xbrl.sec.gov/country/2025" xmlns:us-roles="http://fasb.org/us-roles/2025" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:us-types="http://fasb.org/us-types/2025" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:oef-def="http://xbrl.sec.gov/oef-def/2025" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:srt="http://fasb.org/srt/2025" xmlns:oef-sr="http://xbrl.sec.gov/oef-sr/2025" xmlns:srt-roles="http://fasb.org/srt-roles/2025" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:stpr="http://xbrl.sec.gov/stpr/2025" elementFormDefault="qualified">
	<import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
	<import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
	<import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
	<import namespace="http://fasb.org/us-types/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-types-2025.xsd"/>
	<import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>   
	<import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd"/>
	<import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
	<import namespace="http://fasb.org/srt-types/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd"/>
	<import namespace="http://xbrl.sec.gov/oef-sr/2025" schemaLocation="https://xbrl.sec.gov/oef/2025/oef-sr-2025.xsd"/>
	<import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/>
	<import namespace="http://fasb.org/us-roles/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd"/>
	<import namespace="http://fasb.org/srt-roles/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-roles-2025.xsd"/>
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				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReport" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReport"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportHoldingsDetails"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportLineGraphDetails"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportAverageAnnualReturnDetails"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ClassOnly"/>
				<link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd#eedm"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/LargestHoldingOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#LargestHoldingOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/Other1CategoryOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#Other1CategoryOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#AdditionalIndexOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#BroadBasedIndexOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/Other2CategoryOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#Other2CategoryOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/SalesLoadOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#SalesLoadOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/MaturityOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#MaturityOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/IndustrySectorOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#IndustrySectorOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/CreditQualityOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#CreditQualityOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/GeographicRegionOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#GeographicRegionOnly"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006618Member" xlink:label="C000006618Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006617Member" xlink:label="C000006617Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006615Member" xlink:label="C000006615Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006628Member" xlink:label="C000006628Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006633Member" xlink:label="C000006633Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000070410Member" xlink:label="C000070410Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006636Member" xlink:label="C000006636Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006638Member" xlink:label="C000006638Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006641Member" xlink:label="C000006641Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006635Member" xlink:label="C000006635Member"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_SchneiderElectricSEMember" xlink:label="SchneiderElectricSEMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="SchneiderElectricSEMember" order="4.0" />
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					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="WillisTowersWatsonPLCMember" order="5.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_MedtronicPLCMember" xlink:label="MedtronicPLCMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="MedtronicPLCMember" order="6.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmazonComIncMember" xlink:label="AmazonComIncMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="AmazonComIncMember" order="7.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_AlphabetIncAMember" xlink:label="AlphabetIncAMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="AlphabetIncAMember" order="8.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_VisaIncAMember" xlink:label="VisaIncAMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="VisaIncAMember" order="9.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_BroadcomIncMember" xlink:label="BroadcomIncMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="BroadcomIncMember" order="10.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_MicrosoftCorpMember" xlink:label="MicrosoftCorpMember"/>
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					<link:loc xlink:type="locator" xlink:href="#mstvi_NextEraEnergyIncMember" xlink:label="NextEraEnergyIncMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="NextEraEnergyIncMember" order="12.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_ConstellationEnergyMember" xlink:label="ConstellationEnergyMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="ConstellationEnergyMember" order="13.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_PGAndECorpMember" xlink:label="PGAndECorpMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="PGAndECorpMember" order="14.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_XcelEnergyIncMember" xlink:label="XcelEnergyIncMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="XcelEnergyIncMember" order="15.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_SempraEnergyMember" xlink:label="SempraEnergyMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="SempraEnergyMember" order="16.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmericanElectricPowerCoIncMember" xlink:label="AmericanElectricPowerCoIncMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="AmericanElectricPowerCoIncMember" order="17.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_DTEEnergyCoMember" xlink:label="DTEEnergyCoMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="DTEEnergyCoMember" order="18.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmerenCorpMember" xlink:label="AmerenCorpMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="AmerenCorpMember" order="19.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_DominionEnergyIncMember" xlink:label="DominionEnergyIncMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="DominionEnergyIncMember" order="20.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_SouthernCoMember" xlink:label="SouthernCoMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="SouthernCoMember" order="21.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_SempraMember" xlink:label="SempraMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="SempraMember" order="22.0" />
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_GeographicRegionDomain" xlink:label="GeographicRegionDomain"/>
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_IT" xlink:label="IT"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeographicRegionDomain" xlink:to="IT" order="3.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_JP" xlink:label="JP"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeographicRegionDomain" xlink:to="JP" order="4.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CN" xlink:label="CN"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeographicRegionDomain" xlink:to="CN" order="5.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_FR" xlink:label="FR"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeographicRegionDomain" xlink:to="FR" order="6.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CH" xlink:label="CH"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeographicRegionDomain" xlink:to="CH" order="7.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CA" xlink:label="CA"/>
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_DE" xlink:label="DE"/>
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_ES" xlink:label="ES"/>
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US" xlink:label="US"/>
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_TW" xlink:label="TW"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeographicRegionDomain" xlink:to="TW" order="12.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB" xlink:label="GB"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeographicRegionDomain" xlink:to="GB" order="13.0" />
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_IndustrySectorDomain" xlink:label="IndustrySectorDomain"/>	
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialServicesSectorMember" xlink:label="FinancialServicesSectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="FinancialServicesSectorMember" order="3.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HealthcareSectorMember" xlink:label="HealthcareSectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="HealthcareSectorMember" order="4.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateSectorMember" xlink:label="RealEstateSectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="RealEstateSectorMember" order="5.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_CommunicationsSectorMember" xlink:label="CommunicationsSectorMember"/>
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ConsumerDiscretionarySectorMember" xlink:label="ConsumerDiscretionarySectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="ConsumerDiscretionarySectorMember" order="7.0" />
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					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="ConsumerStaplesSectorMember" order="8.0" />
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_InformationTechnologySectorMember" xlink:label="InformationTechnologySectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="InformationTechnologySectorMember" order="10.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_MaterialsSectorMember" xlink:label="MaterialsSectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="MaterialsSectorMember" order="11.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_UtilitiesSectorMember" xlink:label="UtilitiesSectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="UtilitiesSectorMember" order="12.0" />
					<link:loc xlink:type="locator" xlink:href="#mstvi_EnergyRenewablesMember" xlink:label="EnergyRenewablesMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="EnergyRenewablesMember" order="13.0" />
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					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_CreditQualityDomain" xlink:label="CreditQualityDomain"/>	
					<link:loc xlink:type="locator" xlink:href="#mstvi_NotRatedMember" xlink:label="NotRatedMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CreditQualityDomain" xlink:to="NotRatedMember" order="2.0" />
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					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006624Member" xlink:label="C000006624Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006624Member" order="3.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006623Member" xlink:label="C000006623Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006623Member" order="4.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006618Member" xlink:label="C000006618Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006618Member" order="5.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006617Member" xlink:label="C000006617Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006617Member" order="6.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006619Member" xlink:label="C000006619Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006619Member" order="7.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006621Member" xlink:label="C000006621Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006621Member" order="8.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006615Member" xlink:label="C000006615Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006615Member" order="9.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006625Member" xlink:label="C000006625Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006625Member" order="10.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006627Member" xlink:label="C000006627Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006627Member" order="11.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006628Member" xlink:label="C000006628Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006628Member" order="12.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006629Member" xlink:label="C000006629Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006629Member" order="13.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006631Member" xlink:label="C000006631Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006631Member" order="14.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006633Member" xlink:label="C000006633Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006633Member" order="15.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006634Member" xlink:label="C000006634Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006634Member" order="16.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006626Member" xlink:label="C000006626Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006626Member" order="17.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000111486Member" xlink:label="C000111486Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000111486Member" order="18.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000070410Member" xlink:label="C000070410Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000070410Member" order="19.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006636Member" xlink:label="C000006636Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006636Member" order="20.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006644Member" xlink:label="C000006644Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006644Member" order="21.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006643Member" xlink:label="C000006643Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006643Member" order="22.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006639Member" xlink:label="C000006639Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006639Member" order="23.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006638Member" xlink:label="C000006638Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006638Member" order="24.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006641Member" xlink:label="C000006641Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006641Member" order="25.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006637Member" xlink:label="C000006637Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006637Member" order="26.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006635Member" xlink:label="C000006635Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000006635Member" order="27.0"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/Other1CategoryOnly">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_OtherCategory1Domain" xlink:label="OtherCategory1Domain"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_OtherCountriesMember" xlink:label="OtherCountriesMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="OtherCategory1Domain" xlink:to="OtherCountriesMember" order="1.0"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/Other2CategoryOnly">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_OtherCategory2Domain" xlink:label="OtherCategory2Domain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/LargestHoldingOnly">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_LargestHoldingsDomain" xlink:label="LargestHoldingsDomain"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_NVIDIACorpMember" xlink:label="NVIDIACorpMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="NVIDIACorpMember" order="1.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_CharlesSchwabCorpMember" xlink:label="CharlesSchwabCorpMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="CharlesSchwabCorpMember" order="2.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_SchneiderElectricSEMember" xlink:label="SchneiderElectricSEMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="SchneiderElectricSEMember" order="3.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_WillisTowersWatsonPLCMember" xlink:label="WillisTowersWatsonPLCMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="WillisTowersWatsonPLCMember" order="4.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_MedtronicPLCMember" xlink:label="MedtronicPLCMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="MedtronicPLCMember" order="5.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmazonComIncMember" xlink:label="AmazonComIncMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="AmazonComIncMember" order="6.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_AlphabetIncAMember" xlink:label="AlphabetIncAMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="AlphabetIncAMember" order="7.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_VisaIncAMember" xlink:label="VisaIncAMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="VisaIncAMember" order="8.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_BroadcomIncMember" xlink:label="BroadcomIncMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="BroadcomIncMember" order="9.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_MicrosoftCorpMember" xlink:label="MicrosoftCorpMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="MicrosoftCorpMember" order="10.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_NextEraEnergyIncMember" xlink:label="NextEraEnergyIncMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="NextEraEnergyIncMember" order="11.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_ConstellationEnergyMember" xlink:label="ConstellationEnergyMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="ConstellationEnergyMember" order="12.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_PGAndECorpMember" xlink:label="PGAndECorpMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="PGAndECorpMember" order="13.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_XcelEnergyIncMember" xlink:label="XcelEnergyIncMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="XcelEnergyIncMember" order="14.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_SempraEnergyMember" xlink:label="SempraEnergyMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="SempraEnergyMember" order="15.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmericanElectricPowerCoIncMember" xlink:label="AmericanElectricPowerCoIncMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="AmericanElectricPowerCoIncMember" order="16.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_DTEEnergyCoMember" xlink:label="DTEEnergyCoMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="DTEEnergyCoMember" order="17.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmerenCorpMember" xlink:label="AmerenCorpMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="AmerenCorpMember" order="18.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_DominionEnergyIncMember" xlink:label="DominionEnergyIncMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="DominionEnergyIncMember" order="19.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_SouthernCoMember" xlink:label="SouthernCoMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="SouthernCoMember" order="20.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_SempraMember" xlink:label="SempraMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="SempraMember" order="21.0"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SalesLoadOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_WithSalesLoadMember" xlink:label="WithSalesLoadMember"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="InvestmentTypeCategorizationMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="MoneyMarketFundsMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="MoneyMarketFundsMember" order="1.0"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMember" xlink:label="EquityMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="EquityMember" order="2.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_FederalAgenciesMember" xlink:label="FederalAgenciesMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="FederalAgenciesMember" order="3.0"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentDebtSecuritiesMember" xlink:label="USGovernmentDebtSecuritiesMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="USGovernmentDebtSecuritiesMember" order="4.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_NonFixedIncomeMember" xlink:label="NonFixedIncomeMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="NonFixedIncomeMember" order="5.0"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FixedIncomeSecuritiesMember" xlink:label="FixedIncomeSecuritiesMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="FixedIncomeSecuritiesMember" order="6.0"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_BroadBasedIndexDomain" xlink:label="BroadBasedIndexDomain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly">              
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AdditionalIndexDomain" xlink:label="AdditionalIndexDomain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/MaturityOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_MaturityDomain" xlink:label="MaturityDomain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/IndustrySectorOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_IndustrySectorDomain" xlink:label="IndustrySectorDomain"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_EnergyRenewablesMember" xlink:label="EnergyRenewablesMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="EnergyRenewablesMember" order="1.0"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/CreditQualityOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_CreditQualityDomain" xlink:label="CreditQualityDomain"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_NotRatedMember" xlink:label="NotRatedMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CreditQualityDomain" xlink:to="NotRatedMember" order="1.0"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_MoneyMarketFundsQualityMember" xlink:label="MoneyMarketFundsQualityMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CreditQualityDomain" xlink:to="MoneyMarketFundsQualityMember" order="2.0"/>
				</link:definitionLink>
				<!--GeographicRegionOnly use only for STPR-->
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/GeographicRegionOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_GeographicRegionDomain" xlink:label="GeographicRegionDomain"/>
				</link:definitionLink>
				<link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">               
					<link:loc xlink:type="locator" xlink:href="#mstvi_NotRatedMember" xlink:label="NotRatedMember"/>
					<link:label xlink:type="resource" xlink:label="label_NotRatedMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Not Rated [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NotRatedMember" xlink:to="label_NotRatedMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_MoneyMarketFundsQualityMember" xlink:label="MoneyMarketFundsQualityMember"/>
					<link:label xlink:type="resource" xlink:label="label_MoneyMarketFundsQualityMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Money Market Funds Quality [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MoneyMarketFundsQualityMember" xlink:to="label_MoneyMarketFundsQualityMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_KR" xlink:label="KR"/>
					<link:label xlink:type="resource" xlink:label="label_KR" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">KOREA, REPUBLIC OF</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="KR" xlink:to="label_KR"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_IT" xlink:label="IT"/>
					<link:label xlink:type="resource" xlink:label="label_IT" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">ITALY</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IT" xlink:to="label_IT"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_JP" xlink:label="JP"/>
					<link:label xlink:type="resource" xlink:label="label_JP" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">JAPAN</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="JP" xlink:to="label_JP"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CN" xlink:label="CN"/>
					<link:label xlink:type="resource" xlink:label="label_CN" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">CHINA</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CN" xlink:to="label_CN"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_FR" xlink:label="FR"/>
					<link:label xlink:type="resource" xlink:label="label_FR" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">FRANCE</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FR" xlink:to="label_FR"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CH" xlink:label="CH"/>
					<link:label xlink:type="resource" xlink:label="label_CH" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">SWITZERLAND</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CH" xlink:to="label_CH"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CA" xlink:label="CA"/>
					<link:label xlink:type="resource" xlink:label="label_CA" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">CANADA</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CA" xlink:to="label_CA"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_DE" xlink:label="DE"/>
					<link:label xlink:type="resource" xlink:label="label_DE" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">GERMANY</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DE" xlink:to="label_DE"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_ES" xlink:label="ES"/>
					<link:label xlink:type="resource" xlink:label="label_ES" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">SPAIN</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ES" xlink:to="label_ES"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US" xlink:label="US"/>
					<link:label xlink:type="resource" xlink:label="label_US" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">UNITED STATES</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="US" xlink:to="label_US"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_TW" xlink:label="TW"/>
					<link:label xlink:type="resource" xlink:label="label_TW" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">TAIWAN</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TW" xlink:to="label_TW"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB" xlink:label="GB"/>
					<link:label xlink:type="resource" xlink:label="label_GB" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">UNITED KINGDOM</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GB" xlink:to="label_GB"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EnergySectorMember" xlink:label="EnergySectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_EnergySectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Energy Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EnergySectorMember" xlink:to="label_EnergySectorMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialServicesSectorMember" xlink:label="FinancialServicesSectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_FinancialServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Financial Services Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialServicesSectorMember" xlink:to="label_FinancialServicesSectorMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HealthcareSectorMember" xlink:label="HealthcareSectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_HealthcareSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Healthcare Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="HealthcareSectorMember" xlink:to="label_HealthcareSectorMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateSectorMember" xlink:label="RealEstateSectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_RealEstateSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Real Estate Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RealEstateSectorMember" xlink:to="label_RealEstateSectorMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_EnergyRenewablesMember" xlink:label="EnergyRenewablesMember"/>
					<link:label xlink:type="resource" xlink:label="label_EnergyRenewablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Energy Renewables [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EnergyRenewablesMember" xlink:to="label_EnergyRenewablesMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="MoneyMarketFundsMember"/>
					<link:label xlink:type="resource" xlink:label="label_MoneyMarketFundsMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Money Market Funds [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MoneyMarketFundsMember" xlink:to="label_MoneyMarketFundsMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityMember" xlink:label="EquityMember"/>
					<link:label xlink:type="resource" xlink:label="label_EquityMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Equity [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EquityMember" xlink:to="label_EquityMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_FederalAgenciesMember" xlink:label="FederalAgenciesMember"/>
					<link:label xlink:type="resource" xlink:label="label_FederalAgenciesMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Federal Agencies [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FederalAgenciesMember" xlink:to="label_FederalAgenciesMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_USGovernmentDebtSecuritiesMember" xlink:label="USGovernmentDebtSecuritiesMember"/>
					<link:label xlink:type="resource" xlink:label="label_USGovernmentDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">US Government Debt Securities [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="USGovernmentDebtSecuritiesMember" xlink:to="label_USGovernmentDebtSecuritiesMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_NonFixedIncomeMember" xlink:label="NonFixedIncomeMember"/>
					<link:label xlink:type="resource" xlink:label="label_NonFixedIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Non Fixed Income [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NonFixedIncomeMember" xlink:to="label_NonFixedIncomeMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FixedIncomeSecuritiesMember" xlink:label="FixedIncomeSecuritiesMember"/>
					<link:label xlink:type="resource" xlink:label="label_FixedIncomeSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Fixed Income Securities [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixedIncomeSecuritiesMember" xlink:to="label_FixedIncomeSecuritiesMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_NVIDIACorpMember" xlink:label="NVIDIACorpMember"/>
					<link:label xlink:type="resource" xlink:label="label_NVIDIACorpMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">NVIDIA Corp [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NVIDIACorpMember" xlink:to="label_NVIDIACorpMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_CharlesSchwabCorpMember" xlink:label="CharlesSchwabCorpMember"/>
					<link:label xlink:type="resource" xlink:label="label_CharlesSchwabCorpMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Charles Schwab Corp [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CharlesSchwabCorpMember" xlink:to="label_CharlesSchwabCorpMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_SchneiderElectricSEMember" xlink:label="SchneiderElectricSEMember"/>
					<link:label xlink:type="resource" xlink:label="label_SchneiderElectricSEMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Schneider Electric SE [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SchneiderElectricSEMember" xlink:to="label_SchneiderElectricSEMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_WillisTowersWatsonPLCMember" xlink:label="WillisTowersWatsonPLCMember"/>
					<link:label xlink:type="resource" xlink:label="label_WillisTowersWatsonPLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Willis Towers Watson PLC [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WillisTowersWatsonPLCMember" xlink:to="label_WillisTowersWatsonPLCMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_MedtronicPLCMember" xlink:label="MedtronicPLCMember"/>
					<link:label xlink:type="resource" xlink:label="label_MedtronicPLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Medtronic PLC [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MedtronicPLCMember" xlink:to="label_MedtronicPLCMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmazonComIncMember" xlink:label="AmazonComIncMember"/>
					<link:label xlink:type="resource" xlink:label="label_AmazonComIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Amazon com Inc [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmazonComIncMember" xlink:to="label_AmazonComIncMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_AlphabetIncAMember" xlink:label="AlphabetIncAMember"/>
					<link:label xlink:type="resource" xlink:label="label_AlphabetIncAMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Alphabet Inc A [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AlphabetIncAMember" xlink:to="label_AlphabetIncAMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_VisaIncAMember" xlink:label="VisaIncAMember"/>
					<link:label xlink:type="resource" xlink:label="label_VisaIncAMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Visa Inc A [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VisaIncAMember" xlink:to="label_VisaIncAMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_BroadcomIncMember" xlink:label="BroadcomIncMember"/>
					<link:label xlink:type="resource" xlink:label="label_BroadcomIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Broadcom Inc [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BroadcomIncMember" xlink:to="label_BroadcomIncMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_MicrosoftCorpMember" xlink:label="MicrosoftCorpMember"/>
					<link:label xlink:type="resource" xlink:label="label_MicrosoftCorpMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Microsoft Corp [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MicrosoftCorpMember" xlink:to="label_MicrosoftCorpMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_NextEraEnergyIncMember" xlink:label="NextEraEnergyIncMember"/>
					<link:label xlink:type="resource" xlink:label="label_NextEraEnergyIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">NextEra Energy Inc [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NextEraEnergyIncMember" xlink:to="label_NextEraEnergyIncMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_ConstellationEnergyMember" xlink:label="ConstellationEnergyMember"/>
					<link:label xlink:type="resource" xlink:label="label_ConstellationEnergyMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Constellation Energy [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConstellationEnergyMember" xlink:to="label_ConstellationEnergyMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_PGAndECorpMember" xlink:label="PGAndECorpMember"/>
					<link:label xlink:type="resource" xlink:label="label_PGAndECorpMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">PG And E Corp [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PGAndECorpMember" xlink:to="label_PGAndECorpMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_XcelEnergyIncMember" xlink:label="XcelEnergyIncMember"/>
					<link:label xlink:type="resource" xlink:label="label_XcelEnergyIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Xcel Energy Inc [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="XcelEnergyIncMember" xlink:to="label_XcelEnergyIncMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_SempraEnergyMember" xlink:label="SempraEnergyMember"/>
					<link:label xlink:type="resource" xlink:label="label_SempraEnergyMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Sempra Energy [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SempraEnergyMember" xlink:to="label_SempraEnergyMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmericanElectricPowerCoIncMember" xlink:label="AmericanElectricPowerCoIncMember"/>
					<link:label xlink:type="resource" xlink:label="label_AmericanElectricPowerCoIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">American Electric Power Co Inc [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmericanElectricPowerCoIncMember" xlink:to="label_AmericanElectricPowerCoIncMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_DTEEnergyCoMember" xlink:label="DTEEnergyCoMember"/>
					<link:label xlink:type="resource" xlink:label="label_DTEEnergyCoMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">DTE Energy Co [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DTEEnergyCoMember" xlink:to="label_DTEEnergyCoMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_AmerenCorpMember" xlink:label="AmerenCorpMember"/>
					<link:label xlink:type="resource" xlink:label="label_AmerenCorpMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Ameren Corp [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmerenCorpMember" xlink:to="label_AmerenCorpMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_DominionEnergyIncMember" xlink:label="DominionEnergyIncMember"/>
					<link:label xlink:type="resource" xlink:label="label_DominionEnergyIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Dominion Energy Inc [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DominionEnergyIncMember" xlink:to="label_DominionEnergyIncMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_SouthernCoMember" xlink:label="SouthernCoMember"/>
					<link:label xlink:type="resource" xlink:label="label_SouthernCoMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Southern Co [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SouthernCoMember" xlink:to="label_SouthernCoMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_SempraMember" xlink:label="SempraMember"/>
					<link:label xlink:type="resource" xlink:label="label_SempraMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Sempra [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SempraMember" xlink:to="label_SempraMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_OtherCountriesMember" xlink:label="OtherCountriesMember"/>
					<link:label xlink:type="resource" xlink:label="label_OtherCountriesMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Other Countries [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherCountriesMember" xlink:to="label_OtherCountriesMember"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000111485Member" xlink:label="C000111485Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000111485Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000111485 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000111485Member" xlink:to="label_C000111485Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000111485Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class R6</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000111485Member" xlink:to="label_C000111485Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006616Member" xlink:label="C000006616Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006616Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006616 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006616Member" xlink:to="label_C000006616Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000006616Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class R4</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006616Member" xlink:to="label_C000006616Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006624Member" xlink:label="C000006624Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006624Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006624 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006624Member" xlink:to="label_C000006624Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000006624Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class R3</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006624Member" xlink:to="label_C000006624Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006623Member" xlink:label="C000006623Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006623Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006623 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006623Member" xlink:to="label_C000006623Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000006623Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class R2</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006623Member" xlink:to="label_C000006623Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006618Member" xlink:label="C000006618Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006618Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006618 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006618Member" xlink:to="label_C000006618Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000006618Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class C</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006618Member" xlink:to="label_C000006618Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006617Member" xlink:label="C000006617Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006617Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006617 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006617Member" xlink:to="label_C000006617Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000006617Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class B</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006617Member" xlink:to="label_C000006617Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006619Member" xlink:label="C000006619Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006619Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006619 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006619Member" xlink:to="label_C000006619Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000006619Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class I</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006619Member" xlink:to="label_C000006619Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006621Member" xlink:label="C000006621Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006621Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006621 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006621Member" xlink:to="label_C000006621Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000006621Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class R1</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006621Member" xlink:to="label_C000006621Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006615Member" xlink:label="C000006615Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006615Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006615 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006615Member" xlink:to="label_C000006615Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000006615Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class A</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006615Member" xlink:to="label_C000006615Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006625Member" xlink:label="C000006625Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006625Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006625 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006625Member" xlink:to="label_C000006625Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006627Member" xlink:label="C000006627Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006627Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006627 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006627Member" xlink:to="label_C000006627Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006628Member" xlink:label="C000006628Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006628Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006628 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006628Member" xlink:to="label_C000006628Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006629Member" xlink:label="C000006629Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006629Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006629 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006629Member" xlink:to="label_C000006629Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006631Member" xlink:label="C000006631Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006631Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006631 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006631Member" xlink:to="label_C000006631Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006633Member" xlink:label="C000006633Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006633Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006633 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006633Member" xlink:to="label_C000006633Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006634Member" xlink:label="C000006634Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006634Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006634 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006634Member" xlink:to="label_C000006634Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006626Member" xlink:label="C000006626Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006626Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006626 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006626Member" xlink:to="label_C000006626Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000111486Member" xlink:label="C000111486Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000111486Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000111486 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000111486Member" xlink:to="label_C000111486Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000070410Member" xlink:label="C000070410Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000070410Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000070410 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000070410Member" xlink:to="label_C000070410Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006636Member" xlink:label="C000006636Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006636Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006636 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006636Member" xlink:to="label_C000006636Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006644Member" xlink:label="C000006644Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006644Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006644 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006644Member" xlink:to="label_C000006644Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006643Member" xlink:label="C000006643Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006643Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006643 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006643Member" xlink:to="label_C000006643Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006639Member" xlink:label="C000006639Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006639Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006639 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006639Member" xlink:to="label_C000006639Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006638Member" xlink:label="C000006638Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006638Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006638 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006638Member" xlink:to="label_C000006638Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006641Member" xlink:label="C000006641Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006641Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006641 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006641Member" xlink:to="label_C000006641Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006637Member" xlink:label="C000006637Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006637Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006637 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006637Member" xlink:to="label_C000006637Member"/>
					<link:loc xlink:type="locator" xlink:href="#mstvi_C000006635Member" xlink:label="C000006635Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000006635Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000006635 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000006635Member" xlink:to="label_C000006635Member"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MoodysAaaRatingMember" xlink:label="MoodysAaaRatingMember"/>
					<link:label xlink:type="resource" xlink:label="label_MoodysAaaRatingMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Moody&apos;s, Aaa Rating [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MoodysAaaRatingMember" xlink:to="label_MoodysAaaRatingMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_FitchAARatingMember" xlink:label="FitchAARatingMember"/>
					<link:label xlink:type="resource" xlink:label="label_FitchAARatingMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Fitch, AA Rating [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FitchAARatingMember" xlink:to="label_FitchAARatingMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_FitchARatingMember" xlink:label="FitchARatingMember"/>
					<link:label xlink:type="resource" xlink:label="label_FitchARatingMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Fitch, A Rating [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FitchARatingMember" xlink:to="label_FitchARatingMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_FitchBBBRatingMember" xlink:label="FitchBBBRatingMember"/>
					<link:label xlink:type="resource" xlink:label="label_FitchBBBRatingMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Fitch, BBB Rating [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FitchBBBRatingMember" xlink:to="label_FitchBBBRatingMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_FitchDRatingMember" xlink:label="FitchDRatingMember"/>
					<link:label xlink:type="resource" xlink:label="label_FitchDRatingMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Fitch, D Rating [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FitchDRatingMember" xlink:to="label_FitchDRatingMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeAxis" xlink:label="InvestmentTypeAxis"/>
					<link:label xlink:type="resource" xlink:label="label_InvestmentTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Investment Type [Axis]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentTypeAxis" xlink:to="label_InvestmentTypeAxis" priority="1"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsNet" xlink:label="AssetsNet"/>
					<link:label xlink:type="resource" xlink:label="label_AssetsNet" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Assets</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsNet" xlink:to="label_AssetsNet" priority="1"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyPortfolioTurnover" xlink:label="InvestmentCompanyPortfolioTurnover"/>
					<link:label xlink:type="resource" xlink:label="label_InvestmentCompanyPortfolioTurnover" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Investment Company Portfolio Turnover</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentCompanyPortfolioTurnover" xlink:to="label_InvestmentCompanyPortfolioTurnover" priority="1"/>                
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_NoTradingSymbolFlag" xlink:label="dei_NoTradingSymbolFlag"/>
					<link:label xlink:type="resource" xlink:label="label_NoTradingSymbolFlag" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">No Trading Symbol Flag</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_NoTradingSymbolFlag" xlink:to="label_NoTradingSymbolFlag" priority="1"/>		
				</link:labelLink>
			</link:linkbase>
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	</annotation>   
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	<element name="EnergyRenewablesMember" id="mstvi_EnergyRenewablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="FederalAgenciesMember" id="mstvi_FederalAgenciesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="NonFixedIncomeMember" id="mstvi_NonFixedIncomeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
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	<element name="CharlesSchwabCorpMember" id="mstvi_CharlesSchwabCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
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</schema>
