Complex sentence: The Upper School also possesses a strong music program; regarding instrumental education there is a concert band and a jazz ensemble, and vocal groups include male and female singing groups, and large group of singers called the Chamber Singers.
Split into simpler sentences: The Upper School also possesses a strong music program; regarding instrumental education there is a concert band and a jazz ensemble. Vocal groups include male and female singing groups, and large group of singers called the Chamber Singers.