Ascension School’s instrumental music/concert band program is an elective that is open to all students in grades 4-8. Lessons are offered on flute, clarinet, saxophone, trumpet, French horn, trombone, baritone and percussion. All students enrolled in this program receive a weekly half-hour group lesson with a small group of students during the school day. Lesson times are rotated weekly so that students do not miss the same general classroom subject each week.

Once beginning students have reached a certain level of proficiency, as determined by the band instructor, they are invited to join the concert band, which rehearses every Friday morning before the start of the school day. The concert band performs a winter concert and a spring concert. The cost of the weekly lessons and participation in the school band is not included in the general tuition and is billed separately by an outside agency.

Ascension School runs a very active and a very unique Musical Theatre  program. All students in Kindergarten through Fifth Grade, and all members of the Middle School Vocal Ensemble, participate in two "Broadway' style musicals as part of Ascension’s Spring Arts Evenings in May.

The students spend two months learning and memorizing a large selection of songs that are then fully staged and choreographed. The students also participate in making scenery, props and costumes for their performances.

The fully integrated songs and dances of each class are then performed with scenery, costumes and lights and accompanied by several professional musicians to standing room only crowds.