Concert Choir is an elective class offered to interested students; no audition is required. The Choir performs at winter and spring concerts as well as special events including a spring feeder school tour and at school liturgies. During the spring semester, students have the opportunity to compete at the Indiana State School Music Association Solo and Ensemble contest. Mater Dei students regularly advance to compete at the state level.
Color Guard is the visual performance aspect of the music program. Members perform using their expression through movement. In the fall the Color Guard performs with the marching band. Color Guard members also perform in the music department's Stage Show in the spring.
Students of music have the opportunity to participate in the Indiana State School Music Association's Solo and Ensemble competition in January and February each year. This competition is open to all vocal, instrumental, and piano students.