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Sphere Board of Directors:

Terry McDonnell, Board Vice-President 
Consulting Manager, Avanade 

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Sarah Whitnah, Board Vice-President, Musician Representative to the Board

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 Susan Mercure, Board Treasurer

Attorney 

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Sara Keith, Board Secretary 

Manager of Patient Activities and Volunteers, Colorado Coalition for the Homeless,Stout Street Recuperative Care Center 


Sally Walker, Board Member 
Onboarding Specialist, Humanitix


Nina Fronjian, Musician Representative to the Board

Interested in joining the board? Contact info@sphereensemble.org or fill out the form below expressing your interest!

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Our board is committed to our mission:  Engaging diverse communities with string ensemble music through the performance of our innovative arrangements, education, and outreach.

sphere musicians

Sphere Ensemble is a 501(c)3 nonprofit organization (EIN: 27-4613778) and all donations are tax-deductible to the fullest extent of the law.

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© 2026 SPHERE ENSEMBLE 

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