Liabilities / Assets
94th percentile
Higher debt load relative to assets than 94% of similar nonprofits.
EIN 23-1929096 • 501(c)3 • Philadelphia, PA
Profile
To be a sustainable musical institution that brings the intimate experience of a world-class chamber orchestra performance to the greater philadelphia area,enriching the musical life of the city and region by the integrity and excellence of its musicianship, the boldness and vitality of ots programming, and by cultivating and building the loyalty of its audiences, musicians and supporters
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
94th percentile
Higher debt load relative to assets than 94% of similar nonprofits.
Liabilities / Revenue
84th percentile
Higher debt load relative to revenue than 84% of similar nonprofits.
Net Margin
40th percentile
Higher net margin than 40% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
84th percentile
Faster asset growth than 84% of similar nonprofits.
Revenue Growth
31st percentile
Faster revenue growth than 31% of similar nonprofits.
Assets
Up$781,354
Up $173,034 (+28%) from 2023
Liabilities
Up$822,137
Up $168,809 (+26%) from 2023
Net Assets
Up-$40,783
Up $4,225 (+9.4%) from 2023
Revenue
Down$1,172,473
Down $28,533 (-2.4%) from 2023
Expenses
Down$1,168,248
Down $20,368 (-1.7%) from 2023
Net Income
Down$4,225
Down $8,165 (-66%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
To be a sustainable musical institution that brings the intimate experience of a world-class chamber orchestra performance to the greater philadelphia area,enriching the musical life of the city and region by the integrity and excellence of its musicianship, the boldness and vitality of its programming, and by cultivating and building the loyalty of its audiences, musicians and supporters
To be a sustainable musical institution that brings the intimate experience of a world-class chamber orchestra performance to the greater philadelphia area,enriching the musical life of the city and region by the integrity and excellence of its musicianship, the boldness and vitality of ots programming, and by cultivating and building the loyalty of its audiences, musicians and supporters
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Pledges and Grants Receivable | $494,500 | $545,500 | ▲ $51,000 |
| Cash and Non-Interest-Bearing Accounts | $44,050 | $23,819 | ▼ $20,231 |
| Prepaid Expenses and Deferred Charges | $4,412 | $8,734 | ▲ $4,322 |
| Accounts Receivable | $8,000 | $6,132 | ▼ $1,868 |
| Land, Buildings, and Equipment, Net | $2,647 | $1,978 | ▼ $669 |
| Total Assets | $608,320 | $781,354 | ▲ $173,034 |
| Other Assets Total | $54,711 | $195,191 | ▲ $140,480 |
| Liabilities | |||
| Unsecured Notes Loans Payable | $329,365 | $329,360 | ▼ $5 |
| Accounts Payable and Accrued Expenses | $168,967 | $215,858 | ▲ $46,891 |
| Other Liabilities | $57,012 | $196,110 | ▲ $139,098 |
| Deferred Revenue | $97,984 | $80,809 | ▼ $17,175 |
| Total Liabilities | $653,328 | $822,137 | ▲ $168,809 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $398,000 | $445,750 | ▲ $47,750 |
| Net Assets Without Donor Restrictions | $-443,008 | $-486,533 | ▼ $43,525 |
| Total Net Assets Fund Balance | $-45,008 | $-40,783 | ▲ $4,225 |
| Total Liabilities and Net Assets / Fund Balance | $608,320 | $781,354 | ▲ $173,034 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $1,978 | $120,084 | $122,062 |
| Other Assets Org | $195,191 | - | - |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Anne Hagan | Ex Officio | FT | $93,000 | $15,391 | $108,391 |
| Name | Title |
|---|---|
| Kenneth M Jarin Esq | Chairman |
| Susan Schwartz Mcdonald | President |
| Karen Fulton | Director |
| Laura Kilday | Director |
| Lawrence Gross | Director |
| Miles Morgan | Director |
| Rosalyn Weinstein | Director |
| Suzanne Peck | Director |
| Dirk Brosse | Ex Officio |
| Joan Goldstein | Secretary |
| Daisy Van Den Hooff-mertens | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $644,933 |
| Salaries, Compensation, and Employee Benefits | $523,315 |
| Total Fundraising Expense | $38,734 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $318,259 | $15,650 | $8,430 | $342,339 |
| Current Officers, Directors, Trustees, and Key Employees | $18,754 | $56,261 | $18,754 | $93,769 |
| Advertising | $73,773 | $0 | $0 | $73,773 |
| Office Expenses | $49,130 | $6,402 | $2,629 | $58,161 |
| Other Employee Benefits | $35,934 | $9,255 | $3,776 | $48,965 |
| Occupancy | $5,116 | $42,535 | $0 | $47,651 |
| Payroll Taxes | $30,149 | $5,873 | $2,220 | $38,242 |
| Interest | $0 | $22,795 | $0 | $22,795 |
| Fees for Services Other | $8,827 | $6,373 | $934 | $16,134 |
| Travel | $12,674 | $0 | $0 | $12,674 |
| Fees for Services Accounting | $0 | $11,990 | $0 | $11,990 |
| Insurance | $1,961 | $3,468 | $322 | $5,751 |
| Other Expenses | $0 | $3,877 | $0 | $3,877 |
| Depreciation Depletion | $0 | $669 | $0 | $669 |
| Fees for Services Legal | $0 | $594 | $0 | $594 |
| Total Functional Expenses | $939,357 | $190,157 | $38,734 | $1,168,248 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $1,168,248 |
| Total Expenses per Audited Statements | $1,168,248 |
| Total Expenses per Form 990 | $1,168,248 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Operating Lease Obligation | $196,110 |
“The board of directors meets to review the form 990 and raise questions concerning the items reported”
“The organization holds monthly staff meetings, bi-weekly meetings with individuals, conducts annual evaluations, an maintains a handbook detailing its conflict of interest policy”
“The executive committee investigates, discusses, and approves compensation”
“The organizations governing documents, conflict of interest policy, and financial statements are all available upon request”
“The executive is paid a bi-monthly salary to oversee operations for the organization”
“The Orchestra is exempt from federal income tax under Section 501(c)(3) of the Internal Revenue Code. However, income from certain activities not directly related to the Organizations tax-exempt purpose is subject to taxation as unrelated business income. In addition, the Organization qualifies for the charitable contribution deduction under Section 170(b) (1) (A) and has been classified as an organization that is not a private foundation under Section 509(a)(2). The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America requires the Organization to report information regarding its exposure to various tax positions taken. Management has performed their evaluation and believes there are no unrecognized tax positions that are required to be disclosed. The Orchestras policy is to classify income tax related interest and penalties, if any, in interest expense and other expenses, respectively. No interest and penalties were recorded during the year ended June 30, 2024.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 168967 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 215858 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 8000 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 6132 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO BE A SUSTAINABLE MUSICAL INSTITUTION THAT BRINGS THE INTIMATE EXPERIENCE OF A WORLD-CLASS CHAMBER ORCHESTRA PERFORMANCE TO THE GREATER PHILADELPHIA AREA,ENRICHING THE MUSICAL LIFE OF THE CITY AND REGION BY THE INTEGRITY AND EXCELLENCE OF ITS MUSICIANSHIP, THE BOLDNESS AND VITALITY OF OTS PROGRAMMING, AND BY CULTIVATING AND BUILDING THE LOYALTY OF ITS AUDIENCES, MUSICIANS AND SUPPORTERS |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 0 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 73773 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 73773 |
| IRS990/AllOtherContributionsAmt | 0 | 755479 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | ANNE HAGAN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2155455451 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1520 LOCUST STREET NO 500 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | PHILADELPHIA |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | PA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 19102 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 44050 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 23819 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 18754 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 56261 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 18754 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 93769 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 820530 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 0 |
| IRS990/CYOtherExpensesAmt | 0 | 644933 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 351943 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 4225 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 523315 |
| IRS990/CYTotalExpensesAmt | 0 | 1168248 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 38734 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1172473 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 97984 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 80809 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 669 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 669 |
| IRS990/Desc | 0 | THE CHAMBER ORCHESTRA OF PHILADELPHIA PERFORMS 30+ SUBSCRIPTION AND OUTREACH CONCERTS PER YEAR, OFTEN SOLD OUT, IN A MIX OF VENUES THROUGHOUT THE REGION FOR ENTHUSIASTIC AUDIENCES FROM ALL WALKS OF LIFE. COP ALSO PRODUCES ITS ORCHESTRA IN THE GARDEN SERIES PRESENTED IN OUTDOOR PUBLIC SPACES THAT PROVIDES A CASUAL ATMOSPHERE WHILE DEEPENING COMMUNITY VALUES. WE ARE PROUD TO PROVIDE FREE PUBLIC CONCERTS IN LOCAL NEIGHBORHOODS, FREE AND LOW-COST TICKETS FOR VETERANS, STUDENTS, AND UNDERSERVED AUDIENCES AT OUR MAINSTAGE; AND OFFER LIVE-STREAM BROADCASTS. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DoingBusinessAsName/BusinessNameLine1Txt | 0 | CHAMBER ORCHESTRA OF PHILADELPHIA |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 398000 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 445750 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 104 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 939357 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 11990 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 11990 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 594 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 594 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 934 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 6373 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 8827 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 16134 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| 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/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 15391 |
| 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/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | ANNE HAGAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | KENNETH M JARIN ESQ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | SUSAN SCHWARTZ MCDONALD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | DAISY VAN DEN HOOFF-MERTENS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JOAN GOLDSTEIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | MILES MORGAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | SUZANNE PECK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | LAWRENCE GROSS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | KAREN FULTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | ROSALYN WEINSTEIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | LAURA KILDAY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | DIRK BROSSE |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 93000 |
| 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/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 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/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | EX OFFICIO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | EX OFFICIO |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1974 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GovernmentGrantsAmt | 0 | 65051 |
| IRS990/GrantAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 1172473 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 322 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 3468 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 1961 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 5751 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 0 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 22795 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 22795 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 10 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 120084 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 2647 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1978 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 122062 |
| IRS990/LegalDomicileStateCd | 0 | PA |
| IRS990/LoanOutstandingInd | 0 | false |
| 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 | TO BE A SUSTAINABLE MUSICAL INSTITUTION THAT BRINGS THE INTIMATE EXPERIENCE OF A WORLD-CLASS CHAMBER ORCHESTRA PERFORMANCE TO THE GREATER PHILADELPHIA AREA,ENRICHING THE MUSICAL LIFE OF THE CITY AND REGION BY THE INTEGRITY AND EXCELLENCE OF ITS MUSICIANSHIP, THE BOLDNESS AND VITALITY OF OTS PROGRAMMING, AND BY CULTIVATING AND BUILDING THE LOYALTY OF ITS AUDIENCES, MUSICIANS AND SUPPORTERS |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | -45008 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | -40783 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | -443008 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | -486533 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 42535 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 5116 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 47651 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 2629 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 6402 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 49130 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 58161 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 54711 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 195191 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 3776 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 9255 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 35934 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 48965 |
| IRS990/OtherExpensesGrp/Desc | 0 | PRODUCTION EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 1 | CONTRACTED SERVICES |
| IRS990/OtherExpensesGrp/Desc | 2 | EQUIPMENT RENTAL |
| IRS990/OtherExpensesGrp/Desc | 3 | BANK AND FINANCE FEES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 0 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 1669 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 3 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 4415 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 3877 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 354132 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 20000 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 10648 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 0 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 354132 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 20000 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 16732 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 3877 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 57012 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 196110 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 8430 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 15650 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 318259 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 342339 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 2220 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 5873 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 30149 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 38242 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 494500 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 545500 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 4412 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 8734 |
| IRS990/PrincipalOfficerNm | 0 | DAISY VAN DEN HOOFF-MERTENS |
| 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 | CURRENT ADMISSIONS - SINGLE TICKETS |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | CURRENT ADMISSIONS - SUBSCRIPTIONS |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | CONTRACT ENGAGEMENTS |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | ROYALTIES |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 1 | 0 |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 2 | 0 |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 3 | 0 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 184311 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 117158 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 48467 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 2007 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 1 | 0 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 2 | 0 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 3 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 838203 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYOtherExpensesAmt | 0 | 555034 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 362803 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 12390 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 633582 |
| IRS990/PYTotalExpensesAmt | 0 | 1188616 |
| IRS990/PYTotalRevenueAmt | 0 | 1201006 |
| IRS990/QuidProQuoContributionsInd | 0 | true |
| IRS990/QuidProQuoContriDisclInd | 0 | true |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 4225 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | true |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 351943 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearAmt | 0 | 134567 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus1YearAmt | 0 | 163372 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus2YearsAmt | 0 | 104062 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus3YearsAmt | 0 | 86538 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus4YearsAmt | 0 | 91751 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 580290 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 820530 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 838203 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 775106 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 454973 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 654477 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 3543289 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 351943 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 362803 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 308633 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 7088 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 228843 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 1259310 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00000 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0 |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.83610 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.80220 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 4015233 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearAmt | 0 | 183034 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt | 0 | 248272 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus2YearsAmt | 0 | 138371 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus3YearsAmt | 0 | 86538 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus4YearsAmt | 0 | 131151 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 787366 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearAmt | 0 | 48467 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus1YearAmt | 0 | 84900 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus2YearsAmt | 0 | 34309 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus4YearsAmt | 0 | 39400 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 207076 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 1172473 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 1201006 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1083739 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 462061 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 883320 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 4802599 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 4802599 |
| 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 |
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