Liabilities / Assets
77th percentile
Higher debt load relative to assets than 77% of similar nonprofits.
EIN 82-5203217 • 501(c)3 • Chicago, IL
Profile
Guarneri Halls mission is to facilitate music education and musical performances (in traditional and non-traditional venues) and the recording, live-streaming and preservation of those performances with the goal of introducing young students to, and creating interest in, classical music. It is also to provide those students who could not otherwise afford classical music instruction with the free use of instruments and grants for private instruction. These goals are accomplished by conducting various workshops aimed primarily toward the education of young music students and music teachers; maintaining a variety of materials, most of which will be accessible free of charge, on the organizations website; and, conducting other activities aimed toward the promotion of classical music. Guarneri Hall is committed to fostering interest in and accessibility to classical music across demographic boundaries.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
77th percentile
Higher debt load relative to assets than 77% of similar nonprofits.
Liabilities / Revenue
84th percentile
Higher debt load relative to revenue than 84% of similar nonprofits.
Net Margin
60th percentile
Higher net margin than 60% of similar nonprofits.
Top Officer Pay
55th percentile
Higher top officer pay than 55% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
53rd percentile
Faster asset growth than 53% of similar nonprofits.
Revenue Growth
74th percentile
Faster revenue growth than 74% of similar nonprofits.
Assets
Up$664,618
Up $28,869 (+4.5%) from 2024
Liabilities
Down$154,599
Down $12,417 (-7.4%) from 2024
Net Assets
Up$510,019
Up $41,286 (+8.8%) from 2024
Revenue
Up$429,164
Up $98,583 (+30%) from 2024
Expenses
Up$387,878
Up $86,800 (+29%) from 2024
Net Income
Up$41,286
Up $11,783 (+40%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
Guarneri Hall NFPs mission is to facilitate music education and to record, preserve and disseminate musical performances with the goal of stimulating interest in classical music, especially in young people. Guarneri Hall NFP also provides assistance to classical music students, and up and coming professionals through instructional grants the facilitation of loans of high-quality musical instruments that they could not otherwise afford. These goals are accomplished through workshops aimed primarily toward the education of young music students and non-music students as well as workshops with aspiring music teachers, and through a variety of materials, which are accessible on the organizations website for a nominal cost.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Loans From Officers Directors | $141,200 | $94,700 | ▼ $46,500 |
| Land, Buildings, and Equipment, Net | $58,908 | $51,245 | ▼ $7,663 |
| Cash and Non-Interest-Bearing Accounts | $21,106 | $25,942 | ▲ $4,836 |
| Accounts Receivable | $6,735 | $3,430 | ▼ $3,305 |
| Savings and Temporary Cash Investments | - | $0 | - |
| Other Notes and Loans Receivable, Net | - | $0 | - |
| Pledges and Grants Receivable | - | $0 | - |
| Receivable From Disqualified Prsn | - | $0 | - |
| Receivables From Officers Etc | - | $0 | - |
| Investments Other Securities | - | $0 | - |
| Investments Program Related | - | $0 | - |
| Investments in Publicly Traded Securities | - | $0 | - |
| Intangible Assets | - | $0 | - |
| Inventories for Sale or Use | - | $0 | - |
| Prepaid Expenses and Deferred Charges | - | $0 | - |
| Total Assets | $635,749 | $664,618 | ▲ $28,869 |
| Other Assets Total | $549,000 | $584,001 | ▲ $35,001 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $25,814 | $59,899 | ▲ $34,085 |
| Other Liabilities | $2 | - | - |
| Total Liabilities | $167,016 | $154,599 | ▼ $12,417 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $468,733 | $510,019 | ▲ $41,286 |
| Total Net Assets Fund Balance | $468,733 | $510,019 | ▲ $41,286 |
| Total Liabilities and Net Assets / Fund Balance | $635,749 | $664,618 | ▲ $28,869 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Leasehold Improvements | $51,245 | $24,122 | $75,367 |
| Other Land Buildings | - | $21,305 | $21,305 |
| Other Assets Org | $1 | - | - |
| Name | Title |
|---|---|
| Linda Berna | President |
| Alexander Hersh | Trustee |
| Brian Hong | Trustee |
| Jennifer Lind | Trustee |
| Stefan Hersh | Trustee |
| Agnes Otworowski | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $387,878 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| All Other Expenses | $61,500 | $9,510 | - | $71,010 |
| Other Expenses | $42,358 | $22,821 | - | $42,358 |
| Office Expenses | - | $5,447 | - | $5,447 |
| Total Functional Expenses | $350,100 | $37,778 | $0 | $387,878 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Loans from Officers, Directors, Trustees, and Key Employees | $141,200 | $94,700 | ▼ $46,500 |
| Receivables from Disqualified Persons | - | $0 | - |
| Receivables from Officers, Directors, Trustees, and Key Employees | - | $0 | - |
“No review was or will be conducted.”
“No documents available to the public.”
“bank fees: Column (A) - Total = $1848; Column (B) - Program Services = $0; Column (C) - Management & General = $1848; Column (D) - Fundraising = $0”
“catering: Column (A) - Total = $12303; Column (B) - Program Services = $12303; Column (C) - Management & General = $0; Column (D) - Fundraising = $0”
“depreciation: Column (A) - Total = $7662; Column (B) - Program Services = $0; Column (C) - Management & General = $7662; Column (D) - Fundraising = $0”
“marketing: Column (A) - Total = $29468; Column (B) - Program Services = $29468; Column (C) - Management & General = $0; Column (D) - Fundraising = $0”
“Professional Fees: Column (A) - Total = $6911; Column (B) - Program Services = $6911; Column (C) - Management & General = $0; Column (D) - Fundraising = $0”
“Travel: Column (A) - Total = $12818; Column (B) - Program Services = $12818; Column (C) - Management & General = $0; Column (D) - Fundraising = $0”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
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|---|---|---|
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| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 59899 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 6735 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 3430 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | Guarneri Hall NFPs mission is to facilitate music education and to record, preserve and disseminate musical performances with the goal of stimulating interest in classical music, especially in young people. Guarneri Hall NFP also provides assistance to classical music students, and up and coming professionals through instructional grants the facilitation of loans of high-quality musical instruments that they could not otherwise afford. These goals are accomplished through workshops aimed primarily toward the education of young music students and non-music students as well as workshops with aspiring music teachers, and through a variety of materials, which are accessible on the organizations website for a nominal cost. |
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| IRS990/AllOtherContributionsAmt | 0 | 196559 |
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| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 61500 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 71010 |
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| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | Stefan Hersh |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8477806720 |
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| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 606036338 |
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| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 25942 |
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| IRS990/CollectionsOfArtInd | 0 | false |
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| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
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| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
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| IRS990/CYOtherRevenueAmt | 0 | 114842 |
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| IRS990/CYRevenuesLessExpensesAmt | 0 | 41286 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 387878 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 429164 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
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| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 0 |
| IRS990/Desc | 0 | Guarneri Hall NFP GH facilitates music education, musical performances and the recording, live-streaming and preservation of musical performances with the goal of stimulating interest in classical music, especially in young people. The organizational goals are accomplished through educational initiatives aimed toward the education of a. pre-college students with no music background, b. pre-college aspiring musicians, and c. collegiate and post collegiate up and coming professional musicians. Guarneri Hall NFP produces and disseminates a variety of video, audio, and print materials, much of which is accessible free of charge or at a nominal cost at guarnerihall.org and on YouTube. GH also provides aspiring musicians with assistance, including instruction, career guidance, and the facilitation of loans of high-quality musical instruments that they could not otherwise afford. |
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| IRS990/DisregardedEntityInd | 0 | false |
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| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 350100 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
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| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 0 |
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| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
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| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form1098CFiledInd | 0 | false |
| IRS990/Form8282FiledCnt | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form8899Filedind | 0 | false |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 15.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 15.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.00 |
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| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Linda Berna |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Agnes Otworowski |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Stefan Hersh |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Jennifer Lind |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Alexander Hersh |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Brian Hong |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Trustee |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | false |
| IRS990/FormationYr | 0 | 2018 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 6 |
| IRS990/GovernmentGrantsAmt | 0 | 18990 |
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| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
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| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 0 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 0 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 0 |
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| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 45427 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 58908 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 51245 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 96672 |
| IRS990/LegalDomicileStateCd | 0 | IL |
| IRS990/LoanOutstandingInd | 0 | true |
| IRS990/LoansFromOfficersDirectorsGrp/BOYAmt | 0 | 141200 |
| IRS990/LoansFromOfficersDirectorsGrp/EOYAmt | 0 | 94700 |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | false |
| IRS990/MinutesOfGoverningBodyInd | 0 | false |
| IRS990/MiscellaneousRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 8112 |
| IRS990/MiscellaneousRevenueGrp/TotalRevenueColumnAmt | 0 | 8112 |
| IRS990/MissionDesc | 0 | Guarneri Hall NFPs mission is to facilitate music education and to record, preserve and disseminate musical performances with the goal of stimulating interest in classical music, especially in young people. Guarneri Hall NFP also provides assistance to classical music students, and up and coming professionals through instructional grants the facilitation of loans of high-quality musical instruments that they could not otherwise afford. These goals are accomplished through workshops aimed primarily toward the education of young music students and non-music students as well as workshops with aspiring music teachers, and through a variety of materials, which are accessible on the organizations website for a nominal cost. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 468733 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 510019 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 468733 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 510019 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/TotalAmt | 0 | 0 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 5447 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 5447 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 549000 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 584001 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | artistic |
| IRS990/OtherExpensesGrp/Desc | 1 | space rental |
| IRS990/OtherExpensesGrp/Desc | 2 | operating expenses |
| IRS990/OtherExpensesGrp/Desc | 3 | contracted labor |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 22821 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 155707 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 67714 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 22821 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 42358 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 155707 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 67714 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 45642 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 42358 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 2 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 711130 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 711130 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 2 | 711130 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | In Kind Rent |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | In-Kind Donations Instruments |
| IRS990/OtherRevenueMiscGrp/Desc | 2 | Reception |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 66464 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 35000 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 2 | 5266 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 66464 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 35000 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 2 | 5266 |
| IRS990/OtherRevenueTotalAmt | 0 | 114842 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 0 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 0 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | Stefan Hersh |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 711130 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 711130 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 711130 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 711130 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Guarneri Hall Events |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Performance |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | Piano Tuning |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | Ticket Sales |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 44133 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 21652 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 1958 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | 31030 |
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| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 21652 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 1958 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 31030 |
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| IRS990/PYOtherRevenueAmt | 0 | 65308 |
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| IRS990/PYTotalExpensesAmt | 0 | 301078 |
| IRS990/PYTotalRevenueAmt | 0 | 330581 |
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| IRS990/ReconcilationRevenueExpnssAmt | 0 | 41286 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | true |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 0 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 0 |
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| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 215549 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 217673 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 224049 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 596529 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 32096 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 1285896 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 4486 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 4486 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.99650 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 1285896 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 0 |
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| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 224049 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 596529 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 32096 |
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| IRS990ScheduleA/TotalSupportAmt | 0 | 1290382 |
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| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 51245 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 24122 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 75367 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 584000 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 1 | 1 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | Instruments |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 1 | Rounding |
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| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 21305 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 51245 |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 584001 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990ScheduleL/LoansBtwnOrgInterestedPrsnGrp/BalanceDueAmt | 0 | 94700 |
| IRS990ScheduleL/LoansBtwnOrgInterestedPrsnGrp/BoardOrCommitteeApprovalInd | 0 | true |
| IRS990ScheduleL/LoansBtwnOrgInterestedPrsnGrp/DefaultInd | 0 | false |
| IRS990ScheduleL/LoansBtwnOrgInterestedPrsnGrp/LoanPurposeTxt | 0 | Capital |
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| IRS990ScheduleL/LoansBtwnOrgInterestedPrsnGrp/OriginalPrincipalAmt | 0 | 141200 |
| IRS990ScheduleL/LoansBtwnOrgInterestedPrsnGrp/PersonNm | 0 | Stefan Hersh |
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| IRS990ScheduleL/TotalBalanceDueAmt | 0 | 94700 |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | No review was or will be conducted. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | No documents available to the public. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | bank fees: Column (A) - Total = $1848; Column (B) - Program Services = $0; Column (C) - Management & General = $1848; Column (D) - Fundraising = $0 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | catering: Column (A) - Total = $12303; Column (B) - Program Services = $12303; Column (C) - Management & General = $0; Column (D) - Fundraising = $0 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | depreciation: Column (A) - Total = $7662; Column (B) - Program Services = $0; Column (C) - Management & General = $7662; Column (D) - Fundraising = $0 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | marketing: Column (A) - Total = $29468; Column (B) - Program Services = $29468; Column (C) - Management & General = $0; Column (D) - Fundraising = $0 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | Professional Fees: Column (A) - Total = $6911; Column (B) - Program Services = $6911; Column (C) - Management & General = $0; Column (D) - Fundraising = $0 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 7 | Travel: Column (A) - Total = $12818; Column (B) - Program Services = $12818; Column (C) - Management & General = $0; Column (D) - Fundraising = $0 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section B, Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990, Part VI, Section C, Line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990, Part IX, Line 24e |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Form 990, Part IX, Line 24e |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Form 990, Part IX, Line 24e |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | Form 990, Part IX, Line 24e |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | Form 990, Part IX, Line 24e |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 7 | Form 990, Part IX, Line 24e |
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| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 350100 |
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| IRS990/TravelGrp/TotalAmt | 0 | 0 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/USAddress/AddressLine1Txt | 0 | 11 East Adams Street Ste 350A |
| IRS990/USAddress/CityNm | 0 | Chicago |
| IRS990/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/USAddress/ZIPCd | 0 | 606036338 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 6 |
| IRS990/VotingMembersIndependentCnt | 0 | 0 |
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