The school band program is run independently of the St. Luke School curriculum by the Garwood-Whaley Music Program. The band fee covers weekly instrument lessons and practice sessions with the full band. Lessons rotate from period to period throughout the year so that a student does not miss the same class each week. The full band practices once a week before school and performs at the Advent and Spring Concerts as well as in the Diocesan Band Festival competition. Instrument rentals are contracted through Music and Arts, Inc.

Saint Luke has a beginning band and advanced band.