The Columbine High School Instrumental Music Program is an active and balanced program. It offers many performing activities for students. The late summer/fall is the busiest time of the year. The Marching Band prepares the field show and practices long hours perfecting the show. The band performs at half-times of the home football games and the pep band plays during the game. The Marching Band also competes in area competitions and festivals, culminating with the Colorado State Championships in late October.

There are performing opportunities for many students in the Columbine Instrumental Music Program. All wind and percussion students are in the marching band in the fall semester, which splits into 5 different groups during the spring semester. While the busiest time is the fall with the many festivals and performances, the spring ensembles are also very active.

Each year, the bands are host to The Columbine Festival, a concert band festival featuring 40 of Colorado's top bands. National level adjudicators and clinicians evaluate and work with the bands.