About M.U.S.E. We offer group instrumental classes after school for grades 4-8 (Beginners and Intermediate levels) in private Catholic schools in bay area. Instrumental instruction for the following instruments: flute, clarinet, alto sax, trumpet, trombone, and percussion (xylophone and snare). Classes run from Sept-May (9 months). Qualifications Desired (for Band Instruction but also pertains to overall teaching) • Classroom management skills working with groups of students ages 9-13.Create an account to see the full posting, access our search engine, and more.