The OSYO is made up of eighty young orchestral musicians from throughout the Okanagan Valley. Under the direction of Dennis Colpitts and Rosemary Thomson, the OSYO is the flagship of the OSO’s Education and Outreach program. Now celebrating its 30th Anniversary, the OSYO program offers students from ages 10 to 20 a rigorous training program with OSO mentors, weekly rehearsals, overnight camp, solo opportunities and a successful composition program.