Civic Intelligence

Musopen

EIN 20-3177592 • 501(c)3 • Redwood City, CA

Pub. 78 Eligible990-N Coverage

Profile

Musopen is a 501c3 non-profit focused on improving access and exposure to music by creating free resources and educational materials. We provide recordings, sheet music, music applications and educational materials to the public for free, without copyright restrictions. Put simply, our mission is to set music free.

1199 Saint Francis StreetRedwood City, CA 94061

musopen.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

59th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • <$500k nonprofits • Source year 2023

Liabilities / Revenue

61st percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • <$500k nonprofits • Source year 2023

Net Margin

29th percentile

-11%

Higher net margin than 29% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2023

Top Officer Pay

84th percentile

$0

Higher top officer pay than 84% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • <$500k nonprofits • Source year 2018

Asset Growth

30th percentile

-21%

Faster asset growth than 30% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2022 to 2023

Revenue Growth

72nd percentile

20%

Faster revenue growth than 72% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2022 to 2023

Assets

Down

$23,132

Down $9,772 (-30%) from 2023

Liabilities

Flat

$0

Flat from 2023

Net Assets

Down

$23,132

Down $9,772 (-30%) from 2023

Revenue

Up

$81,795

Up $5,139 (+6.7%) from 2023

Expenses

Up

$91,567

Up $6,233 (+7.3%) from 2023

Net Income

Down

-$9,772

Down $1,094 (-13%) from 2023

Trend Graphs

Balance Sheet Trend

Grouped bars show assets, liabilities, and net assets across loaded filings.

$100K$50K$0Assets 2013: $91,000Liabilities 2013: $02013Assets 2016: $72,923Liabilities 2016: $0Net Assets 2016: $72,9232016Assets 2017: $50,000Liabilities 2017: $0Net Assets 2017: $50,0002017Assets 2018: $30,337Liabilities 2018: $0Net Assets 2018: $30,3372018Assets 2019: $12,768Liabilities 2019: $0Net Assets 2019: $12,7682019Assets 2020: $61,003Liabilities 2020: $0Net Assets 2020: $61,0032020Assets 2021: $89,788Liabilities 2021: $0Net Assets 2021: $89,7882021Assets 2022: $41,582Liabilities 2022: $0Net Assets 2022: $41,5822022Assets 2023: $32,904Liabilities 2023: $0Net Assets 2023: $32,9042023Assets 2024: $23,132Liabilities 2024: $0Net Assets 2024: $23,1322024

Highlighted filing

2024

Assets$23,132
Liabilities$0
Net Assets$23,132

Operations Trend

Revenue, expenses, and net income by year, with the latest filing highlighted.

$150K$100K$50K$0-$50KRevenue 2013: $104,000Expenses 2013: $13,000Net Income 2013: $91,0002013Revenue 2016: $78,059Expenses 2016: $0Net Income 2016: $78,0592016Revenue 2017: $76,174Expenses 2017: $73,315Net Income 2017: $2,8592017Revenue 2018: $60,779Expenses 2018: $60,000Net Income 2018: $7792018Revenue 2019: $52,431Expenses 2019: $70,000Net Income 2019: -$17,5692019Revenue 2020: $80,070Expenses 2020: $31,835Net Income 2020: $48,2352020Revenue 2021: $105,087Expenses 2021: $62,134Net Income 2021: $42,9532021Revenue 2022: $63,859Expenses 2022: $92,065Net Income 2022: -$28,2062022Revenue 2023: $76,656Expenses 2023: $85,334Net Income 2023: -$8,6782023Revenue 2024: $81,795Expenses 2024: $91,567Net Income 2024: -$9,7722024

Highlighted filing

2024

Revenue$81,795
Expenses$91,567
Net Income-$9,772

Filings

Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Apr 15, 2025
Return Version
2024v5.0
Gross Receipts
$81,795
Mission and Program Overview

Mission

Musopen (www.musopen.org) is a 501(c)(3) non-profit focused on improving access and exposure to music by creating free resources and educational materials. We provide recordings, sheet music, music applications and educational materials to the public for free, without copyright restrictions. Put simply, our mission is to set music free.

Musopen is a 501c3 non-profit focused on improving access and exposure to music by creating free resources and educational materials. We provide recordings, sheet music, music applications and educational materials to the public for free, without copyright restrictions. Put simply, our mission is to set music free.

Program Services

DescriptionGrantsExpenses
Musopen hosts the largest collection of public domain music recordings in the US.$0$81,795
Compensation and Service Providers

Employees

NameTitleFull / Part TimeBaseOtherTotal
Aaron DunnFounderPT$0--
Filing and Contact Details

Filer

Filer Name
Musopen
EIN
20-3177592
Phone
8183924634
Address
1199 Saint Francis Street, Redwood City, CA 94061

Signing Officer

Name
Aaron Dunn
Title
Founder, Owner
Phone
8183924634
Signed
2025-04-15
Raw XML Appendix209 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

Path#Value
IRS990EZ/ActivitiesNotPreviouslyRptInd00
IRS990EZ/BenefitsPaidToOrForMembersAmt00
IRS990EZ/BooksInCareOfDetail/PersonNm0Aaron Dunn
IRS990EZ/BooksInCareOfDetail/PhoneNum08183924634
IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt01199 Saint Francis Street
IRS990EZ/BooksInCareOfDetail/USAddress/CityNm0Redwood City
IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd0CA
IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd094061
IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt032904
IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt023132
IRS990EZ/ChgMadeToOrgnzngDocNotRptInd00
IRS990EZ/ContributionsGiftsGrantsEtcAmt081795
IRS990EZ/CostOfGoodsSoldAmt00
IRS990EZ/CostOrOtherBasisExpenseSaleAmt00
IRS990EZ/DirectIndirectPltclExpendAmt00
IRS990EZ/DonorAdvisedFndsInd00
IRS990EZ/EngagedInExcessBenefitTransInd00
IRS990EZ/ExcessOrDeficitForYearAmt0-9772
IRS990EZ/FeesAndOtherPymtToIndCntrctAmt091567
IRS990EZ/FiledScheduleAInd01
IRS990EZ/ForeignFinancialAccountInd00
IRS990EZ/ForeignOfficeInd00
IRS990EZ/Form1120PolFiledInd00
IRS990EZ/Form990TotalAssetsGrp/BOYAmt032904
IRS990EZ/Form990TotalAssetsGrp/EOYAmt023132
IRS990EZ/FundraisingGrossIncomeAmt00
IRS990EZ/GainOrLossFromSaleOfAssetsAmt00
IRS990EZ/GamingGrossIncomeAmt00
IRS990EZ/GrantsAndSimilarAmountsPaidAmt00
IRS990EZ/GrossProfitLossSlsOfInvntryAmt00
IRS990EZ/GrossReceiptsAmt081795
IRS990EZ/GrossSalesOfInventoryAmt00
IRS990EZ/InvestmentIncomeAmt00
IRS990EZ/LandAndBuildingsGrp/BOYAmt00
IRS990EZ/LandAndBuildingsGrp/EOYAmt00
IRS990EZ/LobbyingActivitiesInd00
IRS990EZ/MadeLoansToFromOfficersInd00
IRS990EZ/MembershipDuesAmt00
IRS990EZ/MethodOfAccountingCashInd0X
IRS990EZ/NetAssetsOrFundBalancesBOYAmt032904
IRS990EZ/NetAssetsOrFundBalancesEOYAmt023132
IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt032904
IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt023132
IRS990EZ/OccupancyRentUtltsAndMaintAmt00
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt025
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt00
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt00
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt00
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm0Aaron Dunn
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt0Founder
IRS990EZ/OperateHospitalInd00
IRS990EZ/Organization501c3Ind0X
IRS990EZ/OrganizationDissolvedEtcInd00
IRS990EZ/OrganizationHadUBIInd00
IRS990EZ/OtherAssetsTotalDetail/BOYAmt00
IRS990EZ/OtherAssetsTotalDetail/EOYAmt00
IRS990EZ/OtherChangesInNetAssetsAmt00
IRS990EZ/OtherExpensesTotalAmt00
IRS990EZ/OtherRevenueTotalAmt00
IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt0NONE
IRS990EZ/PartVIOfCompOfHghstPdEmplTxt0NONE
IRS990EZ/PoliticalCampaignActyInd00
IRS990EZ/PrimaryExemptPurposeTxt0Musopen is a 501c3 non-profit focused on improving access and exposure to music by creating free resources and educational materials. We provide recordings, sheet music, music applications and educational materials to the public for free, without copyright restrictions. Put simply, our mission is to set music free.
IRS990EZ/PrintingPublicationsPostageAmt00
IRS990EZ/ProgramServiceRevenueAmt00
IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt0Musopen hosts the largest collection of public domain music recordings in the US.
IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt00
IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt081795
IRS990EZ/ProhibitedTaxShelterTransInd00
IRS990EZ/RelatedOrganizationCtrlEntInd00
IRS990EZ/SalariesOtherCompEmplBnftAmt00
IRS990EZ/SaleOfAssetsGrossAmt00
IRS990EZ/ScheduleBNotRequiredInd0X
IRS990EZ/SchoolOperatingInd00
IRS990EZ/SpecialEventsDirectExpensesAmt00
IRS990EZ/SpecialEventsNetIncomeLossAmt00
IRS990EZ/StatesWhereCopyOfReturnIsFldCd0CA
IRS990EZ/SubjectToProxyTaxInd00
IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt00
IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt00
IRS990EZ/TanningServicesProvidedInd00
IRS990EZ/TaxImposedOnOrganizationMgrAmt00
IRS990EZ/TaxImposedUnderIRC4911Amt00
IRS990EZ/TaxImposedUnderIRC4912Amt00
IRS990EZ/TaxImposedUnderIRC4955Amt00
IRS990EZ/TaxReimbursedByOrganizationAmt00
IRS990EZ/TotalExpensesAmt091567
IRS990EZ/TotalProgramServiceExpensesAmt081795
IRS990EZ/TotalRevenueAmt081795
IRS990EZ/TransactionWithControlEntInd00
IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd00
IRS990EZ/TypeOfOrganizationCorpInd0X
IRS990EZ/WebsiteAddressTxt0https://www.musopen.org
IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearAmt00
IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt00
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt081795
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt076656
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt081878
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt0105087
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt080070
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt0425486
IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearAmt00
IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/TotalAmt00
IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt00
IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt00
IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt00
IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt00
IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearAmt00
IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt00
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt00
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt00
IRS990ScheduleA/InvestmentIncomeCYPct00
IRS990ScheduleA/InvestmentIncomePYPct00
IRS990ScheduleA/NetIncomeFromOtherUBIGrp/CurrentTaxYearAmt00
IRS990ScheduleA/NetIncomeFromOtherUBIGrp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/NetIncomeFromOtherUBIGrp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/NetIncomeFromOtherUBIGrp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/NetIncomeFromOtherUBIGrp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/NetIncomeFromOtherUBIGrp/TotalAmt00
IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearAmt00
IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/OtherIncome509Grp/TotalAmt00
IRS990ScheduleA/Post1975UBTIGrp/CurrentTaxYearAmt00
IRS990ScheduleA/Post1975UBTIGrp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/Post1975UBTIGrp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/Post1975UBTIGrp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/Post1975UBTIGrp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/Post1975UBTIGrp/TotalAmt00
IRS990ScheduleA/PubliclySupportedOrg509a2Ind0X
IRS990ScheduleA/PublicSupportCY509Pct01
IRS990ScheduleA/PublicSupportPY509Pct01
IRS990ScheduleA/PublicSupportTotal509Amt0425486
IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearAmt00
IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt00
IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearAmt00
IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt00
IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearAmt00
IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus1YearAmt00
IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus2YearsAmt00
IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus3YearsAmt00
IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus4YearsAmt00
IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/TotalAmt00
IRS990ScheduleA/ThirtyThrPctSuprtTestsPY509Ind0X
IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt081795
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt076656
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt081878
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt0105087
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt080070
IRS990ScheduleA/Total509Grp/TotalAmt0425486
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt081795
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt076656
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt081878
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt0105087
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt080070
IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt0425486
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/PersonNm0Aaron Dunn
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0Founder, Owner
ReturnHeader/BusinessOfficerGrp/PhoneNum08183924634
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-04-15
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0MUSOPEN
ReturnHeader/Filer/BusinessNameControlTxt0MUSO
ReturnHeader/Filer/EIN0203177592
ReturnHeader/Filer/PhoneNum08183924634
ReturnHeader/Filer/USAddress/AddressLine1Txt01199 Saint Francis Street
ReturnHeader/Filer/USAddress/CityNm0Redwood City
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CA
ReturnHeader/Filer/USAddress/ZIPCd094061
ReturnHeader/IRSResponsiblePrtyInfoCurrInd01
ReturnHeader/ReturnTs02025-04-17T00:22:30-07:00
ReturnHeader/ReturnTypeCd0990EZ
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

Document Assets

No mirrored PDF or thumbnail assets are attached yet.