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Chamber Orchestra of San Antonio

The Chamber Orchestra of San Antonio is a 501(c)(3) non-profit organization whose goal is to serve the new and the versed music lover, help educate the public about classical music, help integrate the arts, and represent this flourishing city. Join COSA and share the opportunity to inspire the public through the fine arts, using classical music as the point of convergence, thereby creating a broader audience for the fine arts and a more cohesive community of well-rounded individuals.

We are pleased to accept online secure donations for your convenience. To make a donation please click here:

You may also send a check to:

Chamber Orchestra of San Antonio P.O. Box 6846 San Antonio, TX 78209

Thank you for your support!

COSA is a registered non-profit organization under Section 501(c)(3) of the IRS code and classified as a public charity under Sub-Section 170(b)(1)(A)(vi) . Your contribution is tax deductible to the fullest extent allowed by law.

COSA Music Institute

COSA MUSIC INSTITUTE is the educational arm of the Chamber Orchestra of San Antonio. With your support, COSA Music Institute has the potential of incorporating an entire school offering a wide variety of music related programs. CMI will develop two of these programs in the areas of string chamber orchestra and chamber music ensemble as focus for the summer of 2016.

To contribute to CMI, please click here:

Thank you for your support!

CMI is a registered non-profit organization under Section 501(c)(3) of the IRS code and classified as a public charity under Sub-Section 170(b)(1)(A)(vi) . Your contribution is tax deductible to the fullest extent allowed by law.

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