• Rattler Marching Band
    The award winning “Rattler Marching Band” performs at all varsity football games, pep rallies, parades, special events, and marching contests.

    Color Guard
    This is an active performing group that incorporates flags, rifles, and sabers as well as other equipment in combination with dance in an interpretive musical setting.  This group performs with the marching band, and then has an independent competitive indoor season during the spring semester.

    Wind Symphony
    This is the varsity instrumental music performing ensemble for San Marcos High School.

    Symphonic Band
    This band is an advancing performing ensemble made up of students in grades 9-12.

    Concert Band
    This band is the entry level performing ensemble made up of students in grades 9-12. 

    Jazz Ensemble
    This is an instrumental performing ensemble specializing in the various styles associated with Jazz music.