The GCHS Marching Warriors Band provides students with the opportunity to 
incorporate the performance of music with motion. All band students will participate in the Marching Warriors Band. To be a member of the Marching Warriors Band, the student must be enrolled in a full hour band and the appropriate sectional during the fall semester. There are two different sections of the Marching Warriors Band in which students may participate.
- Junior Varsity Marching Band– This group performs at two concerts during the fall semester and at all home football games. Any student that does not meet the competitive marching band audition requirements or rehearsal schedule due to a conflict with another school organization or sport may be placed in the Junior Varsity Marching Band. The student must meet all financial obligations and agrees to attend all concerts.
- Varsity Marching Band – This group performs at all home football games, parades, concerts, and several marching band competitions. A substantial amount of after school rehearsal time goes into the preparation of these performances. The student must pass the audition requirements, meet all financial obligations, and agrees to attend summer rehearsals, GCHS Band Camp, and all after school rehearsals and performances.
The Marching Warriors Color Guard is a select group with membership through audition only. This group performs as a part of the Varsity Marching Band at all home football games, parades, and several marching band competitions. A substantial amount of rehearsal time goes into the preparation of these performances. The student must meet all financial obligations, and agrees to attend summer rehearsals, GCHS Band Camp, and all after school rehearsals and performances.