- Auditions for initial placement in the Youth Orchestras of Prince William will be held in the spring after the concert season or in the fall before rehearsals begin; however, new members are accepted throughout the season. Please contact the YOPW office to schedule an audition. Students must re-audition to move to a different YOPW ensemble. Move-up auditions will be held only in the spring, unless a vacancy must be filled during the season. Students may only audition to move up one level per season.