The Marriotts Ridge High School Concert Choir, fondly known as the Mustang Chorale, consists of 140 students working together to perfect some of the most challenging choral pieces available to such large groups. The singers in this ensemble have varying levels of singing experience, but all come together to create magic with the music they love. Since it was founded in 2005, the Mustang Chorale has been ranked superior in adjudications both locally and regionally. They have participated in performances in places such as Virginia Beach, Tennessee, South Carolina, and Florida. This mixed choir has led the state in the largest number of students accepted into Maryland All-State Choir from one school since 2009.