Gwinnett Symphony Orchestra and Chorus Association, Inc., DBA: Gwinnett Symphony Musical Arts Consortium (GSMAC) relies on the generosity of corporate and individual patrons for its financial well-being. Please consider making a tax-deductible donation today. We are nonprofit 501(c)(3) corporation and all contributions are tax-deductible as allowed by law. Our EIN is 58-2263611. Thank you for your continued support!