rid·er /ˈrīdər/ noun 1. a Roosevelt High School student, a Roughrider. chor /kōr/ Etymology: Middle High German noun 1. choir 2. chorus RiderChor is Roosevelt High School's auditioned TTBB vocal ensemble comprised of hard-working and talented singers. They meet daily during a lunch period to rehearse music for each concert as well as the district large group contest. RiderChor offers an opportunity for bass-clef singers to expand their knowledge of TTBB repertoire, to develop themselves as individual vocalists, and to deepen their relationships with their peers. RiderChor has worked under the direction of Mason Meyer since 2021.