Select Choir is the auditioned curricular choir at RMHS. Select choir sings advanced music from many styles in SATB voicings, and often includes divisi. Auditions are held in March each year. 

Mixed Choir is an SATB ensemble that requires no audition. This choir meets during the school day, and performs at concerts throughout the year. 

Fermata Nowhere is the Soprano and Alto break-out group of the Select Choir. They perform all styles of music, and meet in the mornings before school. This is a student-led group. 

The RMHS Crescendudes are the Tenor and Bass break-out group of the Select Choir. They perform all styles of music, and meet in the mornings before school. This is a student-led group.

Harmonium is the RMHS contemporary a cappella group. It is an extracurricular group that meets before school on Tuesday and Thursday mornings. It is an auditioned ensemble that performs a cappella arrangements of popular music from all eras. Due to the nature of the group, members must have strong music reading skills, a confident, engaging stage presence, and excellent intonation (pitch accuracy). Harmonium performs at major concerts and community events throughout the year. Auditions are held within the first couple weeks of the start of classes in the fall.