The Martin Luther Instrumental Department includes various ensembles, such as Spartan Band, Varsity Band, Symphonic Band, Pep Band, Brass Choir, Jazz Ensemble, Woodwind Ensemble, and Percussion Ensemble. Each group offers unique performance opportunities, from school concerts to community events. Students can also participate in the WSMA Solo & Ensemble Contest to showcase their skills. The program emphasizes musicianship and artistic expression, fostering growth in young musicians.
The elementary band program is operated by the Lutheran High School Association of Greater Milwaukee, where instrumental directors teach students at feeder LCMS schools. Each student receives a weekly lesson and participates in school band rehearsals. They also join the Martin Luther High School Kadet Band, which meets on Monday evenings from 6:30 – 7:30pm. Beginner band students start their musical journey in January.