Liabilities / Assets
93rd percentile
Higher debt load relative to assets than 93% of similar nonprofits.
EIN 68-0211969 • 501(c)3 • San Francisco, CA
Profile
Named the best American specialists in early music by The Washington Post, ABS was founded in 1989 with the mission of introducing contemporary audiences to the cantatas of Johann Sebastian Bach through historically informed performances.
Refreshing map…
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
93rd percentile
Higher debt load relative to assets than 93% of similar nonprofits.
Liabilities / Revenue
74th percentile
Higher debt load relative to revenue than 74% of similar nonprofits.
Net Margin
80th percentile
Higher net margin than 80% of similar nonprofits.
Top Officer Pay
40th percentile
Higher top officer pay than 40% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
97th percentile
Faster asset growth than 97% of similar nonprofits.
Revenue Growth
12th percentile
Faster revenue growth than 12% of similar nonprofits.
Assets
Up$412,694
Up $243,417 (+144%) from 2023
Liabilities
Down$389,423
Down $439,847 (-53%) from 2023
Net Assets
Up$23,271
Up $683,264 (+104%) from 2023
Revenue
Up$1,227,769
Up $121,163 (+11%) from 2023
Expenses
Down$858,373
Down $258,290 (-23%) from 2023
Net Income
Up$369,396
Up $379,453 (+3773%) from 2023
Most recent year
2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
The American Bach Soloists touch musical audiences through live performances, recordings, and educational programs that emphasize the engaging repertoire and historically accurate performance practice of the Baroque, Classical, and Early Romantic periods with a special focus on the works of Johann Sebastian Bach. The American Bach Soloists present an annual subscription series with performances in Belvedere, Berkeley, Davis, and San Francisco, California. Their annual holiday performances of Handel's "Messiah", presented each December before capacity audiences since 1992, have become a Bay Area tradition. Each season opens with the American Bach Soloists Festival held each summer and includes performances of major works, opera, and oratorio from the Baroque. The ABS Academy hosts students of Early Music working alongside internationally acclaimed faculty.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Loans From Officers Directors | $444,013 | $374,241 | ▼ $69,772 |
| Savings and Temporary Cash Investments | $60,133 | $193,409 | ▲ $133,276 |
| Land, Buildings, and Equipment, Net | $119,258 | $121,219 | ▲ $1,961 |
| Cash and Non-Interest-Bearing Accounts | $9,466 | $94,708 | ▲ $85,242 |
| Accounts Receivable | - | $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 | $141,061 | $412,694 | ▲ $271,633 |
| Other Assets Total | $-47,796 | $3,358 | ▲ $51,154 |
| Liabilities | |||
| Deferred Revenue | - | $15,490 | - |
| Accounts Payable and Accrued Expenses | $139,493 | $-308 | ▼ $139,801 |
| Total Liabilities | $583,506 | $389,423 | ▼ $194,083 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $16,726 | $16,726 | → $0 |
| Net Assets Without Donor Restrictions | $-459,171 | $6,545 | ▲ $465,716 |
| Total Net Assets Fund Balance | $-442,445 | $23,271 | ▲ $465,716 |
| Total Liabilities and Net Assets / Fund Balance | $141,061 | $412,694 | ▲ $271,633 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Land Buildings | $81,130 | - | $81,130 |
| Equipment | $40,089 | $3,802 | $43,891 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $16,726 | - | - | - | $16,726 |
| 2023 | - | $16,726 | - | - | $16,726 |
| Name | Title |
|---|---|
| Marie F Hogan | President |
| Jacki Breger | Director |
| Mag Diamond | Director |
| Thomas Fletcher | Director |
| Richard Kenarney | Secretary |
| James Meehan | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $623,558 |
| Salaries, Compensation, and Employee Benefits | $234,815 |
| Total Fundraising Expense | $20,619 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Fees for Services Other | $269,227 | $35,315 | $6,295 | $310,837 |
| Other Salaries and Wages | $181,800 | $20,200 | - | $202,000 |
| Office Expenses | $33,798 | $40,373 | $12,869 | $87,040 |
| Travel | $69,286 | $43 | - | $69,329 |
| Occupancy | $32,789 | $13,440 | - | $46,229 |
| Advertising | $27,424 | $5,764 | $137 | $33,325 |
| Fees for Services Legal | - | $28,727 | - | $28,727 |
| Fees for Services Accounting | - | $28,047 | - | $28,047 |
| Other Employee Benefits | $15,239 | $1,693 | - | $16,932 |
| Payroll Taxes | $14,295 | $1,588 | - | $15,883 |
| Information Technology | - | $7,433 | $1,030 | $8,463 |
| Insurance | - | $7,601 | - | $7,601 |
| Conferences and Meetings | $2,952 | $720 | $288 | $3,960 |
| Total Functional Expenses | $646,810 | $190,944 | $20,619 | $858,373 |
| Line Item | Amount |
|---|---|
| Fundraising Gross Income | $12,500 |
| Fundraising Direct Expenses | $10,392 |
| Professional Fundraising Fees | $0 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| Gala | $21,266 | $12,500 | $674 | $11,826 |
| Total Events | $21,266 | $12,500 | $10,392 | $2,108 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Loans from Officers, Directors, Trustees, and Key Employees | $444,013 | $374,241 | ▼ $69,772 |
| Receivables from Disqualified Persons | - | $0 | - |
| Receivables from Officers, Directors, Trustees, and Key Employees | - | $0 | - |
“The 990 is reviewed by the President and after changes have been made, a copy of the 990 is provided to the board prior to filing.”
“Documents are made available upon reasonable request.”
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 | -308 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | The American Bach Soloists touch musical audiences through live performances, recordings, and educational programs that emphasize the engaging repertoire and historically accurate performance practice of the Baroque, Classical, and Early Romantic periods with a special focus on the works of Johann Sebastian Bach. The American Bach Soloists present an annual subscription series with performances in Belvedere, Berkeley, Davis, and San Francisco, California. Their annual holiday performances of Handel's "Messiah", presented each December before capacity audiences since 1992, have become a Bay Area tradition. Each season opens with the American Bach Soloists Festival held each summer and includes performances of major works, opera, and oratorio from the Baroque. The ABS Academy hosts students of Early Music working alongside internationally acclaimed faculty. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 137 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 5764 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 27424 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 33325 |
| IRS990/AllOtherContributionsAmt | 0 | 818760 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 0 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | Jeffrey Thomas |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4156217900 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 182 Howard Street 536 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | San Francisco |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94105 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 9466 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 94708 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 0 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 288 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 720 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 2952 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 3960 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContriRptFundraisingEventAmt | 0 | 8766 |
| IRS990/CostOfGoodsSoldAmt | 0 | 2107 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 827526 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 2112 |
| IRS990/CYOtherExpensesAmt | 0 | 623558 |
| IRS990/CYOtherRevenueAmt | 0 | 19736 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 378395 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 369396 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 234815 |
| IRS990/CYTotalExpensesAmt | 0 | 858373 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 20619 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1227769 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 15490 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 0 |
| IRS990/Desc | 0 | The American Bach Soloists touch musical audiences through live performances, recordings, and educational programs that emphasize the engaging repertoire and historically accurate performance practice of the Baroque, Classical, and Early Romantic periods with a special focus on the works of Johann Sebastian Bach. The American Bach Soloists present an annual subscription series with performances in Belvedere, Berkeley, Davis, and San Francisco, California. Their annual holiday performances of Handel's "Messiah", presented each December before capacity audiences since 1992, have become a Bay Area tradition. Each season opens with the American Bach Soloists Festival held each summer and includes performances of major works, opera, and oratorio from the Baroque. The ABS Academy hosts students of Early Music working alongside internationally acclaimed faculty. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 16726 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 16726 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | true |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 5 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 646810 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 28047 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 28047 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 28727 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 28727 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 6295 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 35315 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 269227 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 310837 |
| 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 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| 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 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | 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 | Jacki Breger |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Mag Diamond |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Marie F Hogan |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | James Meehan |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Richard Kenarney |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Thomas Fletcher |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Director |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1989 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingAmt | 0 | 8766 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 10392 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 12500 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 4 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 1240268 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 3490 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 4 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 1030 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 7433 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 8463 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 7601 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 7601 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 2112 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 2112 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 109 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 3802 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 119258 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 121219 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 125021 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LoansFromOfficersDirectorsGrp/BOYAmt | 0 | 444013 |
| IRS990/LoansFromOfficersDirectorsGrp/EOYAmt | 0 | 374241 |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | The American Bach Soloists touch musical audiences through live performances, recordings, and educational programs that emphasize the engaging repertoire and historically accurate performance practice of the Baroque, Classical, and Early Romantic periods with a special focus on the works of Johann Sebastian Bach. The American Bach Soloists present an annual subscription series with performances in Belvedere, Berkeley, Davis, and San Francisco, California. Their annual holiday performances of Handel's "Messiah", presented each December before capacity audiences since 1992, have become a Bay Area tradition. Each season opens with the American Bach Soloists Festival held each summer and includes performances of major works, opera, and oratorio from the Baroque. The ABS Academy hosts students of Early Music working alongside internationally acclaimed faculty. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | -442445 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 23271 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 2108 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 1383 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 1383 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | -459171 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 6545 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 13440 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 32789 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 46229 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 12869 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 40373 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 33798 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 87040 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | -47796 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 3358 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 1693 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 15239 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 16932 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | Write offs |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 7335 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 7335 |
| IRS990/OtherRevenueTotalAmt | 0 | 7335 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 20200 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 181800 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 202000 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 1588 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 14295 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 15883 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | Marie F Hogan |
| IRS990/PriorPeriodAdjustmentsAmt | 0 | 96320 |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 711190 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Ticket Sales |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 378395 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 378395 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 1291329 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PymtTravelEntrtnmntPubOfclGrp/TotalAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 978396 |
| IRS990/PYOtherRevenueAmt | 0 | 3 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 386049 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 385445 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 313540 |
| IRS990/PYTotalExpensesAmt | 0 | 1291936 |
| IRS990/PYTotalRevenueAmt | 0 | 1677381 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvblFromDisqualifiedPrsnGrp/EOYAmt | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 369396 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 378395 |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 0 |
| IRS990/RoyaltiesRevenueGrp/ExclusionAmt | 0 | 8910 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 8910 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 60133 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 193409 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 840026 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1320320 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1071104 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 753141 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 549586 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 4534177 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 11022 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 9137 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 9723 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 14512 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 6673 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 51067 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 1523639 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearAmt | 0 | 10825 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 9510 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1613 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 539 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 2000 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 24487 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.83750 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.99910 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 3860742 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 673435 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 840026 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1320320 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1071104 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 753141 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 549586 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 4534177 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 4609731 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | true |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 16726 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 16726 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/ContributionsAmt | 0 | 16726 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 16726 |
| IRS990ScheduleD/EndowmentsHeldRelatedOrgInd | 0 | false |
| IRS990ScheduleD/EndowmentsHeldUnrelatedOrgInd | 0 | false |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 40089 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 3802 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 43891 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 81130 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 81130 |
| IRS990ScheduleD/RelatedOrgListSchRInd | 0 | false |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 121219 |
| IRS990ScheduleG/AgrmtProfFundraisingActyInd | 0 | false |
| IRS990ScheduleG/FundraisingEventInformationGrp/CharitableContributionsTotAmt | 0 | 8766 |
| IRS990ScheduleG/FundraisingEventInformationGrp/CharitableContriEvent1Amt | 0 | 8766 |
| IRS990ScheduleG/FundraisingEventInformationGrp/DirectExpenseSummaryEventsAmt | 0 | 10392 |
| IRS990ScheduleG/FundraisingEventInformationGrp/EntertainmentEvent1Amt | 0 | 4513 |
| IRS990ScheduleG/FundraisingEventInformationGrp/EntertainmentTotalEventsAmt | 0 | 4513 |
| IRS990ScheduleG/FundraisingEventInformationGrp/Event1Nm | 0 | Gala |
| IRS990ScheduleG/FundraisingEventInformationGrp/FoodAndBeverageEvent1Amt | 0 | 2235 |
| IRS990ScheduleG/FundraisingEventInformationGrp/FoodAndBeverageTotalEventsAmt | 0 | 2235 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsEvent1Amt | 0 | 21266 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsTotalAmt | 0 | 21266 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossRevenueEvent1Amt | 0 | 12500 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossRevenueTotalEventsAmt | 0 | 12500 |
| IRS990ScheduleG/FundraisingEventInformationGrp/NetIncomeSummaryAmt | 0 | 2108 |
| IRS990ScheduleG/FundraisingEventInformationGrp/OthDirectExpnssTotalEventsAmt | 0 | 674 |
| IRS990ScheduleG/FundraisingEventInformationGrp/OtherDirectExpensesEvent1Amt | 0 | 674 |
| IRS990ScheduleG/FundraisingEventInformationGrp/RentFacilityCostsEvent1Amt | 0 | 2970 |
| IRS990ScheduleG/FundraisingEventInformationGrp/RentFcltyCostsTotalEventsAmt | 0 | 2970 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | The 990 is reviewed by the President and after changes have been made, a copy of the 990 is provided to the board prior to filing. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Documents are made available upon reasonable request. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section B, Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990, Part VI, Section C, Line 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | CA |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 141061 |
| IRS990/TotalAssetsEOYAmt | 0 | 412694 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 141061 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 412694 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 827526 |
| IRS990/TotalEmployeeCnt | 0 | 5 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 20619 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 190944 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 646810 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 858373 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 583506 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 389423 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 583506 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 389423 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | -442445 |
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