<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Thu Aug 13 18:42:18 UTC 2026 -->
<xs:schema elementFormDefault="qualified" xmlns:srt-types="http://fasb.org/srt-types/2026" targetNamespace="http://www.muzinich.com/20260630" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:us-types="http://fasb.org/us-types/2026" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:muzi="http://www.muzinich.com/20260630" xmlns:dtr="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xlink:type="simple" xlink:href="muzi-20260630_lab.xml" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef"/>
      <link:linkbaseRef xlink:type="simple" xlink:href="muzi-20260630_pre.xml" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef"/>
      <link:linkbaseRef xlink:type="simple" xlink:href="muzi-20260630_def.xml" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef"/>
      <link:linkbaseRef xlink:type="simple" xlink:href="muzi-20260630_cal.xml" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef"/>
      <link:roleType roleURI="http://www.muzinich.com/role/ConsolidatedBalanceSheet" id="muzi_r_ConsolidatedBalanceSheet">
        <link:definition>001 - Statement - Consolidated Statements of Assets and Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ConsolidatedBalanceSheet_Parentheticals" id="muzi_r_ConsolidatedBalanceSheet_Parentheticals">
        <link:definition>002 - Statement - Consolidated Statements of Assets and Liabilities (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ConsolidatedIncomeStatement" id="muzi_r_ConsolidatedIncomeStatement">
        <link:definition>003 - Statement - Consolidated Statements of Operations (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ShareholdersEquityType1" id="muzi_r_ShareholdersEquityType1">
        <link:definition>004 - Statement - Consolidated Statements of Changes in Net Assets (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ConsolidatedCashFlow" id="muzi_r_ConsolidatedCashFlow">
        <link:definition>005 - Statement - Consolidated Statements of Cash Flows (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ConsolidatedScheduleofInvestmentsUnauditedTable" id="muzi_r_ConsolidatedScheduleofInvestmentsUnauditedTable">
        <link:definition>006 - Statement - Consolidated Schedule of Investments (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/Organization" id="muzi_r_Organization">
        <link:definition>007 - Disclosure - Organization</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/SummaryofSignificantAccountingPolicies" id="muzi_r_SummaryofSignificantAccountingPolicies">
        <link:definition>008 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/IncomeTaxes" id="muzi_r_IncomeTaxes">
        <link:definition>009 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/AgreementsandRelatedPartyTransactions" id="muzi_r_AgreementsandRelatedPartyTransactions">
        <link:definition>010 - Disclosure - Agreements and Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/CommitmentsandContingencies" id="muzi_r_CommitmentsandContingencies">
        <link:definition>011 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/Investments" id="muzi_r_Investments">
        <link:definition>012 - Disclosure - Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/FairValueofInvestments" id="muzi_r_FairValueofInvestments">
        <link:definition>013 - Disclosure - Fair Value of Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/NetAssets" id="muzi_r_NetAssets">
        <link:definition>014 - Disclosure - Net Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/BorrowingsfromCreditFacility" id="muzi_r_BorrowingsfromCreditFacility">
        <link:definition>015 - Disclosure - Borrowings from Credit Facility</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/EarningsPerShare" id="muzi_r_EarningsPerShare">
        <link:definition>016 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ConsolidatedFinancialHighlights" id="muzi_r_ConsolidatedFinancialHighlights">
        <link:definition>017 - Disclosure - Consolidated Financial Highlights</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/SubsequentEvents" id="muzi_r_SubsequentEvents">
        <link:definition>018 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/AccountingPoliciesByPolicy" id="muzi_r_AccountingPoliciesByPolicy">
        <link:definition>996000 - Disclosure - Accounting Policies, by Policy (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/SummaryofSignificantAccountingPoliciesTables" id="muzi_r_SummaryofSignificantAccountingPoliciesTables">
        <link:definition>996001 - Disclosure - Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/IncomeTaxesTables" id="muzi_r_IncomeTaxesTables">
        <link:definition>996002 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/AgreementsandRelatedPartyTransactionsTables" id="muzi_r_AgreementsandRelatedPartyTransactionsTables">
        <link:definition>996003 - Disclosure - Agreements and Related Party Transactions (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/InvestmentsTables" id="muzi_r_InvestmentsTables">
        <link:definition>996004 - Disclosure - Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/FairValueofInvestmentsTables" id="muzi_r_FairValueofInvestmentsTables">
        <link:definition>996005 - Disclosure - Fair Value of Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/NetAssetsTables" id="muzi_r_NetAssetsTables">
        <link:definition>996006 - Disclosure - Net Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/BorrowingsfromCreditFacilityTables" id="muzi_r_BorrowingsfromCreditFacilityTables">
        <link:definition>996007 - Disclosure - Borrowings from Credit Facility (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/EarningsPerShareTables" id="muzi_r_EarningsPerShareTables">
        <link:definition>996008 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ConsolidatedFinancialHighlightsTables" id="muzi_r_ConsolidatedFinancialHighlightsTables">
        <link:definition>996009 - Disclosure - Consolidated Financial Highlights (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/OrganizationDetails" id="muzi_r_OrganizationDetails">
        <link:definition>996010 - Disclosure - Organization (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/SummaryofSignificantAccountingPoliciesDetails" id="muzi_r_SummaryofSignificantAccountingPoliciesDetails">
        <link:definition>996011 - Disclosure - Summary of Significant Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofInvestmentsTable" id="muzi_r_ScheduleofInvestmentsTable">
        <link:definition>996012 - Disclosure - Summary of Significant Accounting Policies - Schedule of Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/IncomeTaxesDetails" id="muzi_r_IncomeTaxesDetails">
        <link:definition>996013 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofDistributionTable" id="muzi_r_ScheduleofDistributionTable">
        <link:definition>996014 - Disclosure - Income Taxes - Schedule of Distribution (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofComponentsofTotalDistributableAccumulatedEarningsLossesonaTaxBasisTable" id="muzi_r_ScheduleofComponentsofTotalDistributableAccumulatedEarningsLossesonaTaxBasisTable">
        <link:definition>996015 - Disclosure - Income Taxes - Schedule of Components of Total Distributable (Accumulated) Earnings (Losses) on a Tax Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofCostofInvestmentsTable" id="muzi_r_ScheduleofCostofInvestmentsTable">
        <link:definition>996016 - Disclosure - Income Taxes - Schedule of Cost of Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofTotalDistributableAccumulatedEarningsLossesandTaxBasisTable" id="muzi_r_ScheduleofTotalDistributableAccumulatedEarningsLossesandTaxBasisTable">
        <link:definition>996017 - Disclosure - Income Taxes - Schedule of Total Distributable (Accumulated) Earnings/(Losses) and Tax-Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/AgreementsandRelatedPartyTransactionsDetails" id="muzi_r_AgreementsandRelatedPartyTransactionsDetails">
        <link:definition>996018 - Disclosure - Agreements and Related Party Transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofAffiliatedCompaniesTable" id="muzi_r_ScheduleofAffiliatedCompaniesTable">
        <link:definition>996019 - Disclosure - Agreements and Related Party Transactions - Schedule of Affiliated Companies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/CommitmentsandContingenciesDetails" id="muzi_r_CommitmentsandContingenciesDetails">
        <link:definition>996020 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/InvestmentsDetails" id="muzi_r_InvestmentsDetails">
        <link:definition>996021 - Disclosure - Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofInvestmentPortfolioatAmortizedCostandFairValueTable" id="muzi_r_ScheduleofInvestmentPortfolioatAmortizedCostandFairValueTable">
        <link:definition>996022 - Disclosure - Investments - Schedule of Investment Portfolio at Amortized Cost and Fair Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofInvestmentsBasedonFairValueasaPercentageofNetAssetsTable" id="muzi_r_ScheduleofInvestmentsBasedonFairValueasaPercentageofNetAssetsTable">
        <link:definition>996023 - Disclosure - Investments - Schedule of Investments Based on Fair Value, as a Percentage of Net Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofFairValueHierarchyTable" id="muzi_r_ScheduleofFairValueHierarchyTable">
        <link:definition>996024 - Disclosure - Fair Value of Investments - Schedule of Fair Value Hierarchy (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofChangesintheFairValueoftheCompanysInvestmentsTable" id="muzi_r_ScheduleofChangesintheFairValueoftheCompanysInvestmentsTable">
        <link:definition>996025 - Disclosure - Fair Value of Investments - Schedule of Changes in the Fair Value of the Company&#8217;s Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofNetChangeinUnrealizedAppreciationDepreciationTable" id="muzi_r_ScheduleofNetChangeinUnrealizedAppreciationDepreciationTable">
        <link:definition>996026 - Disclosure - Fair Value of Investments - Schedule of Net Change in Unrealized Appreciation (Depreciation) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofSignificantUnobservableInputsTable" id="muzi_r_ScheduleofSignificantUnobservableInputsTable">
        <link:definition>996027 - Disclosure - Fair Value of Investments - Schedule of Significant Unobservable Inputs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/NetAssetsDetails" id="muzi_r_NetAssetsDetails">
        <link:definition>996028 - Disclosure - Net Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofDeclaredtheFollowingDistributionTable" id="muzi_r_ScheduleofDeclaredtheFollowingDistributionTable">
        <link:definition>996029 - Disclosure - Net Assets - Schedule of Declared the Following Distribution (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/BorrowingsfromCreditFacilityDetails" id="muzi_r_BorrowingsfromCreditFacilityDetails">
        <link:definition>996030 - Disclosure - Borrowings from Credit Facility (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofCreditFacilityActivityTable" id="muzi_r_ScheduleofCreditFacilityActivityTable">
        <link:definition>996031 - Disclosure - Borrowings from Credit Facility - Schedule of Credit Facility Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/EarningsPerShareDetails" id="muzi_r_EarningsPerShareDetails">
        <link:definition>996032 - Disclosure - Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofComputationofBasicandDilutedEarningsPerCommonShareTable" id="muzi_r_ScheduleofComputationofBasicandDilutedEarningsPerCommonShareTable">
        <link:definition>996033 - Disclosure - Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/ScheduleofFinancialHighlightsTable" id="muzi_r_ScheduleofFinancialHighlightsTable">
        <link:definition>996034 - Disclosure - Consolidated Financial Highlights - Schedule of Financial Highlights (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/SubsequentEventsDetails" id="muzi_r_SubsequentEventsDetails">
        <link:definition>996035 - Disclosure - Subsequent Events (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.muzinich.com/role/DocumentAndEntityInformation" id="DocumentAndEntityInformation">
        <link:definition>000 - Document - Document And Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://fasb.org/us-types/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-types-2026.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://fasb.org/srt-types/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-types-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/sic/2026" schemaLocation="https://xbrl.sec.gov/sic/2026/sic-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/cef/2026" schemaLocation="https://xbrl.sec.gov/cef/2026/cef-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/cef-pre/2026" schemaLocation="https://xbrl.sec.gov/cef/2026/cef-2026_pre.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd-sub/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-sub-2026.xsd"/>
  <xs:element name="SalesOfUnregisteredEquitySecuritiesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_SalesOfUnregisteredEquitySecuritiesMember"/>
  <xs:element name="IssuerPurchasesOfEquitySecuritiesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_IssuerPurchasesOfEquitySecuritiesMember"/>
  <xs:element name="ConsolidatedScheduleOfInvestmentsUnauditedAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ConsolidatedScheduleOfInvestmentsUnauditedAbstract"/>
  <xs:element name="ScheduleOfDistributionAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfDistributionAbstract"/>
  <xs:element name="ScheduleOfCostOfInvestmentsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfCostOfInvestmentsAbstract"/>
  <xs:element name="ScheduleOfAffiliatedCompaniesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfAffiliatedCompaniesAbstract"/>
  <xs:element name="ScheduleOfInvestmentPortfolioAtAmortizedCostAndFairValueAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfInvestmentPortfolioAtAmortizedCostAndFairValueAbstract"/>
  <xs:element name="ScheduleOfInvestmentsBasedOnFairValueAsAPercentageOfNetAssetsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfInvestmentsBasedOnFairValueAsAPercentageOfNetAssetsAbstract"/>
  <xs:element name="ScheduleOfFairValueHierarchyAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfFairValueHierarchyAbstract"/>
  <xs:element name="ScheduleOfChangesInTheFairValueOfTheCompanySInvestmentsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfChangesInTheFairValueOfTheCompanySInvestmentsAbstract"/>
  <xs:element name="ScheduleOfNetChangeInUnrealizedAppreciationDepreciationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfNetChangeInUnrealizedAppreciationDepreciationAbstract"/>
  <xs:element name="ScheduleOfSignificantUnobservableInputsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfSignificantUnobservableInputsAbstract"/>
  <xs:element name="ScheduleOfDeclaredTheFollowingDistributionAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfDeclaredTheFollowingDistributionAbstract"/>
  <xs:element name="UnlabeledAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_UnlabeledAbstract"/>
  <xs:element name="NetRealizedGainsLossesAndUnrealizedAppreciationDepreciationOnInvestmentsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_NetRealizedGainsLossesAndUnrealizedAppreciationDepreciationOnInvestmentsAbstract"/>
  <xs:element name="NetRealizedGainsLossesOnInvestmentsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_NetRealizedGainsLossesOnInvestmentsAbstract"/>
  <xs:element name="SeniorSecuredLoanDebtInvestments4Abstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_SeniorSecuredLoanDebtInvestments4Abstract"/>
  <xs:element name="AutomotiveAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AutomotiveAbstract"/>
  <xs:element name="CommercialBuildingProductsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_CommercialBuildingProductsAbstract"/>
  <xs:element name="IndustrialMachineryAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_IndustrialMachineryAbstract"/>
  <xs:element name="ItConsultingAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ItConsultingAbstract"/>
  <xs:element name="LeisureFacilitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureFacilitiesAbstract"/>
  <xs:element name="LeisureProductsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureProductsAbstract"/>
  <xs:element name="PackagedFoodsMeatsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PackagedFoodsMeatsAbstract"/>
  <xs:element name="EquityInvestmentsCommonStock812Abstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_EquityInvestmentsCommonStock812Abstract"/>
  <xs:element name="ApparelAccessoriesLuxuryGoodsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ApparelAccessoriesLuxuryGoodsAbstract"/>
  <xs:element name="AutomotiveAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AutomotiveAbstract0"/>
  <xs:element name="CommercialBuildingProductsAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_CommercialBuildingProductsAbstract0"/>
  <xs:element name="ItConsultingAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ItConsultingAbstract0"/>
  <xs:element name="LeisureFacilitiesAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureFacilitiesAbstract0"/>
  <xs:element name="PackagedFoodsMeatsAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PackagedFoodsMeatsAbstract0"/>
  <xs:element name="EquityInvestmentsPreferredStock12Abstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_EquityInvestmentsPreferredStock12Abstract"/>
  <xs:element name="AutomotiveAbstract1" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AutomotiveAbstract1"/>
  <xs:element name="DiversifiedSupportServicesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DiversifiedSupportServicesAbstract"/>
  <xs:element name="IndustrialMachineryAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_IndustrialMachineryAbstract0"/>
  <xs:element name="LeisureProductsAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureProductsAbstract0"/>
  <xs:element name="PackagedFoodsMeatsAbstract1" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PackagedFoodsMeatsAbstract1"/>
  <xs:element name="SeniorSecuredLoanDebtInvestments4Abstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_SeniorSecuredLoanDebtInvestments4Abstract0"/>
  <xs:element name="ApparelAccessoriesLuxuryGoodsAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ApparelAccessoriesLuxuryGoodsAbstract0"/>
  <xs:element name="AutomotiveAbstract2" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AutomotiveAbstract2"/>
  <xs:element name="CommercialBuildingProductsAbstract1" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_CommercialBuildingProductsAbstract1"/>
  <xs:element name="ComputerAndElectronicsRetailAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ComputerAndElectronicsRetailAbstract"/>
  <xs:element name="IndustrialMachineryAbstract1" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_IndustrialMachineryAbstract1"/>
  <xs:element name="ItConsultingAbstract1" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ItConsultingAbstract1"/>
  <xs:element name="LeisureFacilitiesAbstract1" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureFacilitiesAbstract1"/>
  <xs:element name="LeisureProductsAbstract1" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureProductsAbstract1"/>
  <xs:element name="PackagedFoodsMeatsAbstract2" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PackagedFoodsMeatsAbstract2"/>
  <xs:element name="EquityInvestmentsCommonStock812Abstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_EquityInvestmentsCommonStock812Abstract0"/>
  <xs:element name="ApparelAccessoriesLuxuryGoodsAbstract1" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ApparelAccessoriesLuxuryGoodsAbstract1"/>
  <xs:element name="AutomotiveAbstract3" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AutomotiveAbstract3"/>
  <xs:element name="CommercialBuildingProductsAbstract2" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_CommercialBuildingProductsAbstract2"/>
  <xs:element name="ComputerAndElectronicsRetailAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ComputerAndElectronicsRetailAbstract0"/>
  <xs:element name="ItConsultingAbstract2" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ItConsultingAbstract2"/>
  <xs:element name="LeisureFacilitiesAbstract2" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureFacilitiesAbstract2"/>
  <xs:element name="PackagedFoodsMeatsAbstract3" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PackagedFoodsMeatsAbstract3"/>
  <xs:element name="EquityInvestmentsPreferredStock12Abstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_EquityInvestmentsPreferredStock12Abstract0"/>
  <xs:element name="AutomotiveAbstract4" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AutomotiveAbstract4"/>
  <xs:element name="DiversifiedSupportServicesAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DiversifiedSupportServicesAbstract0"/>
  <xs:element name="IndustrialMachineryAbstract2" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_IndustrialMachineryAbstract2"/>
  <xs:element name="LeisureProductsAbstract2" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureProductsAbstract2"/>
  <xs:element name="PackagedFoodsMeatsAbstract4" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PackagedFoodsMeatsAbstract4"/>
  <xs:element name="ShortTermInvestmentsAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ShortTermInvestmentsAbstract0"/>
  <xs:element name="MoneyMarketFundsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MoneyMarketFundsAbstract"/>
  <xs:element name="CapitalLossCarryforwardAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_CapitalLossCarryforwardAbstract"/>
  <xs:element name="PerCommonShareOperatingPerformanceAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PerCommonShareOperatingPerformanceAbstract"/>
  <xs:element name="ResultsOfOperationsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ResultsOfOperationsAbstract"/>
  <xs:element name="DistributionsToCommonStockholdersAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DistributionsToCommonStockholdersAbstract"/>
  <xs:element name="RatioSupplementalDataAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_RatioSupplementalDataAbstract"/>
  <xs:element name="DirectorsFeesPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_DirectorsFeesPayable"/>
  <xs:element name="AccruedOtherGeneralAndAdministrativeExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_AccruedOtherGeneralAndAdministrativeExpenses"/>
  <xs:element name="NetRealizedGainsLossesNoncontrollednonaffiliatedInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_NetRealizedGainsLossesNoncontrollednonaffiliatedInvestments"/>
  <xs:element name="NoncontrollednonaffiliatedInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_NoncontrollednonaffiliatedInvestments"/>
  <xs:element name="AffiliatedInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_AffiliatedInvestments"/>
  <xs:element name="DividendPayableAmountPerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DividendPayableAmountPerShare"/>
  <xs:element name="NetIncomeFromPaymentinkindInterest" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_NetIncomeFromPaymentinkindInterest"/>
  <xs:element name="PurchasesAndDrawdownsOfInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_PurchasesAndDrawdownsOfInvestments"/>
  <xs:element name="IncreaseDecreaseInDirectorsFeesPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_IncreaseDecreaseInDirectorsFeesPayable"/>
  <xs:element name="IncreaseDecreaseInAccruedOtherGeneralAndAdministrativeExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_IncreaseDecreaseInAccruedOtherGeneralAndAdministrativeExpenses"/>
  <xs:element name="ProceedsFromDistributionsNetofChangeinDistributionsPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_ProceedsFromDistributionsNetofChangeinDistributionsPayable"/>
  <xs:element name="InvestmentCompanySpreadAboveIndex" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanySpreadAboveIndex"/>
  <xs:element name="AcquisitionDate" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AcquisitionDate"/>
  <xs:element name="PrincipalPaydownsPolicyPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PrincipalPaydownsPolicyPolicyTextBlock"/>
  <xs:element name="OrganizationAndOfferingCostsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_OrganizationAndOfferingCostsPolicyTextBlock"/>
  <xs:element name="CompanyCommonStockShareValuationPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_CompanyCommonStockShareValuationPolicyTextBlock"/>
  <xs:element name="ValuationOfPortfolioSecuritiesPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ValuationOfPortfolioSecuritiesPolicyTextBlock"/>
  <xs:element name="NetRealizedGainsOrLossesAndNetChangeInUnrealizedAppreciationOrDepreciationPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_NetRealizedGainsOrLossesAndNetChangeInUnrealizedAppreciationOrDepreciationPolicyTextBlock"/>
  <xs:element name="PaymentinKindInterestPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PaymentinKindInterestPolicyTextBlock"/>
  <xs:element name="OtherIncomePolicyPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_OtherIncomePolicyPolicyTextBlock"/>
  <xs:element name="DealOriginationCostsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DealOriginationCostsPolicyTextBlock"/>
  <xs:element name="IdentificationOfNonAccrualInvestmentsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_IdentificationOfNonAccrualInvestmentsPolicyTextBlock"/>
  <xs:element name="ScheduleOfComponentsOfTotalDistributableAccumulatedEarningsLossesOnTaxBasisTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfComponentsOfTotalDistributableAccumulatedEarningsLossesOnTaxBasisTableTextBlock"/>
  <xs:element name="ScheduleOfInvestmentCompanyIncomeTaxesDistributableEarningsTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfInvestmentCompanyIncomeTaxesDistributableEarningsTableTextBlock"/>
  <xs:element name="ScheduleOfChangesInTheFairValueOfInvestmentsTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfChangesInTheFairValueOfInvestmentsTableTextBlock"/>
  <xs:element name="InvestmentType" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentType"/>
  <xs:element name="InvestmentIncomeContractualRate" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentIncomeContractualRate"/>
  <xs:element name="InvestmentOwnedContractualRatePercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentOwnedContractualRatePercentage"/>
  <xs:element name="RecordDate" type="xbrli:dateItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_RecordDate"/>
  <xs:element name="PaymentDate" type="xbrli:dateItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PaymentDate"/>
  <xs:element name="DistributionRatePerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DistributionRatePerShare"/>
  <xs:element name="InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLossNet" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLossNet"/>
  <xs:element name="InvestmentCompanyDistributableEarningsLossAccumulatedShortTermCapitalGainLoss" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanyDistributableEarningsLossAccumulatedShortTermCapitalGainLoss"/>
  <xs:element name="UnrealizedEarningsLossesnet" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_UnrealizedEarningsLossesnet"/>
  <xs:element name="GrossUnrealizedAppreciationOnInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_GrossUnrealizedAppreciationOnInvestments"/>
  <xs:element name="GrossUnrealizedDepreciationOnInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_GrossUnrealizedDepreciationOnInvestments"/>
  <xs:element name="InvestmentCompanyAcquisitions" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanyAcquisitions"/>
  <xs:element name="InvestmentCompanyofDispositions" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanyofDispositions"/>
  <xs:element name="InvestmentCompanyofAccretion" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanyofAccretion"/>
  <xs:element name="ChangeInUnrealizedAppreciationDepreciation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_ChangeInUnrealizedAppreciationDepreciation"/>
  <xs:element name="InvestmentsScheduleofInvestmentPortfolioatAmortizedCostandFairValueDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_InvestmentsScheduleofInvestmentPortfolioatAmortizedCostandFairValueDetailsTable"/>
  <xs:element name="FairValueofInvestmentsScheduleofChangesintheFairValueoftheCompanysInvestmentsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_FairValueofInvestmentsScheduleofChangesintheFairValueoftheCompanysInvestmentsDetailsTable"/>
  <xs:element name="NetChangeInUnrealizedAppreciationdepreciation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_NetChangeInUnrealizedAppreciationdepreciation"/>
  <xs:element name="InvestmentCompanyInvestmentOwnedFairValueValuationTechnique" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanyInvestmentOwnedFairValueValuationTechnique"/>
  <xs:element name="FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerSharePercent" type="dtr:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="muzi_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerSharePercent"/>
  <xs:element name="FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerSharePercentWeightedAverageInputs" type="dtr:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="muzi_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerSharePercentWeightedAverageInputs"/>
  <xs:element name="NetAssetsScheduleofDeclaredtheFollowingDistributionDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_NetAssetsScheduleofDeclaredtheFollowingDistributionDetailsTable"/>
  <xs:element name="DistributionsAndComponentsOfNetAssetsOnTaxBasisPayableDate" type="xbrli:dateItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DistributionsAndComponentsOfNetAssetsOnTaxBasisPayableDate"/>
  <xs:element name="InvestmentCompanyDistributionToShareholdersDecreaseInNetAssetsResultingFromDistributionsPerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanyDistributionToShareholdersDecreaseInNetAssetsResultingFromDistributionsPerShare"/>
  <xs:element name="RatioOfNetInvestmentIncomelossToAverageNetAssetsWithoutReimbursement" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_RatioOfNetInvestmentIncomelossToAverageNetAssetsWithoutReimbursement"/>
  <xs:element name="AssetCoverageRatioWithoutReimbursement" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AssetCoverageRatioWithoutReimbursement"/>
  <xs:element name="SummaryofSignificantAccountingPoliciesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_SummaryofSignificantAccountingPoliciesDetailsTable"/>
  <xs:element name="TotalAssetsPercentage" type="dtr:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="muzi_TotalAssetsPercentage"/>
  <xs:element name="MarketCapitalization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_MarketCapitalization"/>
  <xs:element name="NonAccrualInvestmentsAggregateAmortizedCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="muzi_NonAccrualInvestmentsAggregateAmortizedCost"/>
  <xs:element name="NonAccrualInvestmentsAggregateFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="muzi_NonAccrualInvestmentsAggregateFairValue"/>
  <xs:element name="PercentageOfNonAccrualInvestmentsAggregateAmortizedCost" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PercentageOfNonAccrualInvestmentsAggregateAmortizedCost"/>
  <xs:element name="PercentageOfNonAccrualInvestmentsFairValue" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PercentageOfNonAccrualInvestmentsFairValue"/>
  <xs:element name="IncomeTaxesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_IncomeTaxesDetailsTable"/>
  <xs:element name="PercentageOfInvestmentCompanyTaxableIncome" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PercentageOfInvestmentCompanyTaxableIncome"/>
  <xs:element name="CapitalGainLossesRate" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_CapitalGainLossesRate"/>
  <xs:element name="AgreementsandRelatedPartyTransactionsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_AgreementsandRelatedPartyTransactionsDetailsTable"/>
  <xs:element name="InvestmentCompanyTotalReturnsPaymentToFundByAffiliate" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_InvestmentCompanyTotalReturnsPaymentToFundByAffiliate"/>
  <xs:element name="PercentageOfOutstandingVotingSecurities" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PercentageOfOutstandingVotingSecurities"/>
  <xs:element name="InvestmentsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_InvestmentsDetailsTable"/>
  <xs:element name="NetAssetsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_NetAssetsDetailsTable"/>
  <xs:element name="BorrowingsfromCreditFacilityDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_BorrowingsfromCreditFacilityDetailsTable"/>
  <xs:element name="PercentageOfBorrowing" type="dtr:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PercentageOfBorrowing"/>
  <xs:element name="SubsequentEventsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="muzi_SubsequentEventsDetailsTable"/>
  <xs:element name="AffiliatedInvestmentsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AffiliatedInvestmentsMember"/>
  <xs:element name="AmericanInstituteOfCertifiedPublicAccountantsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AmericanInstituteOfCertifiedPublicAccountantsMember"/>
  <xs:element name="ApparelAccessoriesLuxuryGoodsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ApparelAccessoriesLuxuryGoodsMember"/>
  <xs:element name="AquaLeisureRecreationLLCSecondLienTermLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AquaLeisureRecreationLLCSecondLienTermLoanMember"/>
  <xs:element name="AquaLeisureRecreationLLCThreeMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AquaLeisureRecreationLLCThreeMember"/>
  <xs:element name="AquaLeisureRecreationLLCTwoMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AquaLeisureRecreationLLCTwoMember"/>
  <xs:element name="AutomotiveMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_AutomotiveMember"/>
  <xs:element name="BNPParibasPrimeBrokerageInternationalLimitedMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_BNPParibasPrimeBrokerageInternationalLimitedMember"/>
  <xs:element name="CommercialBuildingProductsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_CommercialBuildingProductsMember"/>
  <xs:element name="ContingentPaymentMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ContingentPaymentMember"/>
  <xs:element name="DiamondBladeWarehouseFirstLienTermLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DiamondBladeWarehouseFirstLienTermLoanMember"/>
  <xs:element name="DiamondBladeWarehouseLLCFirstLienTermLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DiamondBladeWarehouseLLCFirstLienTermLoanMember"/>
  <xs:element name="DiamondBladeWarehouseLLCPreferredStockClassATwoMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DiamondBladeWarehouseLLCPreferredStockClassATwoMember"/>
  <xs:element name="DiamondBladeWarehouseMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DiamondBladeWarehouseMember"/>
  <xs:element name="DiversifiedSupportServicesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DiversifiedSupportServicesMember"/>
  <xs:element name="EquityInvestmentCommonStockMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_EquityInvestmentCommonStockMember"/>
  <xs:element name="EquityInvestmentsCommonStockMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_EquityInvestmentsCommonStockMember"/>
  <xs:element name="EquityInvestmentsPreferredStockMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_EquityInvestmentsPreferredStockMember"/>
  <xs:element name="ITConsultingMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ITConsultingMember"/>
  <xs:element name="IndustrialMachineryMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_IndustrialMachineryMember"/>
  <xs:element name="LeisureFacilitiesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureFacilitiesMember"/>
  <xs:element name="LeisureProductsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LeisureProductsMember"/>
  <xs:element name="LoanAgreementMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_LoanAgreementMember"/>
  <xs:element name="ManagementFeeMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ManagementFeeMember"/>
  <xs:element name="March212025Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_March212025Member"/>
  <xs:element name="MarchTwentyOneTwoThousandTwentyFiveMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MarchTwentyOneTwoThousandTwentyFiveMember"/>
  <xs:element name="MarketApproachMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MarketApproachMember"/>
  <xs:element name="May132025Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_May132025Member"/>
  <xs:element name="May82026Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_May82026Member"/>
  <xs:element name="MayEightTwoThousandTwentySixMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MayEightTwoThousandTwentySixMember"/>
  <xs:element name="MayThirteenTwoThousandTwentyFiveMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MayThirteenTwoThousandTwentyFiveMember"/>
  <xs:element name="MidwestTradingGroupAcquisitionLLCClassA1Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MidwestTradingGroupAcquisitionLLCClassA1Member"/>
  <xs:element name="MidwestTradingGroupAcquisitionLLCClassA3Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MidwestTradingGroupAcquisitionLLCClassA3Member"/>
  <xs:element name="MidwestTradingGroupAcquisitionLLCClassCMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MidwestTradingGroupAcquisitionLLCClassCMember"/>
  <xs:element name="MidwestTradingGroupAcquisitionLLCFirstLienTermLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MidwestTradingGroupAcquisitionLLCFirstLienTermLoanMember"/>
  <xs:element name="MidwestTradingGroupAcquisitionLLCMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MidwestTradingGroupAcquisitionLLCMember"/>
  <xs:element name="MoneyMarketFundMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MoneyMarketFundMember"/>
  <xs:element name="MuzinichCoMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MuzinichCoMember"/>
  <xs:element name="MuzinichUSPrivateDebtSCSpMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_MuzinichUSPrivateDebtSCSpMember"/>
  <xs:element name="NonControlNonAffiliateInvestmentsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_NonControlNonAffiliateInvestmentsMember"/>
  <xs:element name="PackagedFoodsMeatsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PackagedFoodsMeatsMember"/>
  <xs:element name="PortfolioCompanyMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_PortfolioCompanyMember"/>
  <xs:element name="QUESTJVCOLIMITEDClassACommonStockMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QUESTJVCOLIMITEDClassACommonStockMember"/>
  <xs:element name="QUESTJVCOLIMITEDClassAMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QUESTJVCOLIMITEDClassAMember"/>
  <xs:element name="QUESTJVCOLIMITEDCommonStockMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QUESTJVCOLIMITEDCommonStockMember"/>
  <xs:element name="QUESTJVCOLIMITEDLoanNotesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QUESTJVCOLIMITEDLoanNotesMember"/>
  <xs:element name="QuestBidcoGoApeLLCFirstLienDelayedDrawTermLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QuestBidcoGoApeLLCFirstLienDelayedDrawTermLoanMember"/>
  <xs:element name="QuestBidcoGoApeLLCMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QuestBidcoGoApeLLCMember"/>
  <xs:element name="QuestBidcoGoApeLLCOneMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QuestBidcoGoApeLLCOneMember"/>
  <xs:element name="QuestBidcoGoApeLLCSecondLienTermLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QuestBidcoGoApeLLCSecondLienTermLoanMember"/>
  <xs:element name="QuestBidcoGoApeLLCSuperSeniorPriorityTermLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QuestBidcoGoApeLLCSuperSeniorPriorityTermLoanMember"/>
  <xs:element name="QuestBidcoLLCSecondLienTermLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_QuestBidcoLLCSecondLienTermLoanMember"/>
  <xs:element name="RecreationalProductsConsolidationCompanyLLCPromissoryNoteMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_RecreationalProductsConsolidationCompanyLLCPromissoryNoteMember"/>
  <xs:element name="RecreationalProductsHoldingCompanyLLCPreferredStockClassBMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_RecreationalProductsHoldingCompanyLLCPreferredStockClassBMember"/>
  <xs:element name="SeniorSecuredLoanDebtInstrumentsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_SeniorSecuredLoanDebtInstrumentsMember"/>
  <xs:element name="SeniorSecuredLoanDebtInvestmentsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_SeniorSecuredLoanDebtInvestmentsMember"/>
  <xs:element name="TotalAffiliatesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_TotalAffiliatesMember"/>
  <xs:element name="USFederalExciseTaxMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_USFederalExciseTaxMember"/>
  <xs:element name="UnitedStatesTreasuryBillMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_UnitedStatesTreasuryBillMember"/>
  <xs:element name="ValuationTechniqueRecentTransactionPriceMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ValuationTechniqueRecentTransactionPriceMember"/>
  <xs:element name="ScheduleOfFinancialHighlightsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_ScheduleOfFinancialHighlightsAbstract"/>
<!-- [WMV7][O5bA12WupqkZz+QXOkt8UQ8oXUVJKaGASez6kg71JjSwFpvvCFg+4fhagZPWAJcDePWsBcpKQQNT7x7KK4ejMOb08IfVmB2CXstY2xOi5TcxsyePXXa01yfjQdz9d+O6QONC+qdr8jMQNOH+gmgcbCW00bm5R3EgvhmLQOlHzxp1aGp0TtYi5v9qzaOg8E2O0xEuCJ6yYC/GSGgLOhfq5BBhtUY7BUsrXWml/pgrTXhR10atefRZ+D54ComFwrSS/Br+v6AOkgRAg1PzyzExhTWLel4uK+4iIdYMzNWWl2RXB38YypvMRw8TVeXIZ/yaHhXMEjV6WpnnnYZwtOgHku0QwQ==] CSR-->
  <xs:element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="muzi_DocumentAndEntityInformationAbstract"/>
</xs:schema>
