MCYO  offers three full orchestras, a chamber ensemble (at times conductor-less), two string orchestras, a harp ensemble and chamber ensembles to over 450 talented musicians in grades 3-12. Auditions for MCYO are held annually in late August.

Philharmonic – Rehearsals are from 7:00 – 9:30 Wednesday Evenings in Room 405
Chamber Ensemble– Rehearsals are from 7:00 – 9:15 Wednesday Evenings in Room 114
Symphony– Rehearsals are from 7:15 – 9:15 Wednesday Evenings in Room 402
Young Artists– Rehearsals are from 6:45 – 8:45 Wednesday Evenings in Room 304
Chamber Strings– Rehearsals are from 6:30 – 8:15 Wednesday Evenings in Room 309
Preparatory Strings– Rehearsals are from 5:00 – 6:15 Wednesday Evenings in Room 402
Future Stars– Rehearsal are from 5:00 – 6:10 TUESDAY EVENINGS at Julia Bindeman Suburban Center in Potomac.
Chamber/Small Ensembles– Includes Flute Choirs, Clarinet Choir, Harp Ensemble, and other various small groups.