The Detroit Orff Schulwerk Association is a professional organization for music educators that promotes the teachings of Carl Orff and Gunild Keetman. DOSA is a local chapter of the American Orff Schulwerk Association that was founded in 1969. In our 50 years of service, Detroit Orff has provided a professional learning community for music educators to collaborate, network, sing, dance, and play. DOSA offers five workshops every school year, bringing in some of the best clinicians in the country.