The St. Charles County Youth Orchestra (SCCYO) in Missouri is a not-for-profit organization. The orchestra, founded in April of 1996, is open to public, private, and home-schooled students across St. Charles County MO and the surrounding region. Currently, approximately 100 young musicians, grades two through twelve, are members. There are three separate ensembles, grouped by instrument, age and skill level. The ensembles consist of the Symphony Orchestra, Cadenza Orchestra, and Primo Strings. Placement is by audition.