sentences:  Instrumental sections are led by a section leader, who is charged with teaching the required musical selections for a particular show; and an "undergrad staff" member, who is in charge of teaching marching fundamentals to the section during the band's training week.The HMB uses a squad system when writing drills for both pregame and halftime.Squads are composed of four members of a particular section and are designated an alphabetical symbol in marching drills.