Trebellious is an all-gender a cappella group focused on expanding the a cappella community by teaching workshops open to all people at the University of Rochester. Our goal is to provide access to and education about a cappella music to anyone, regardless of experience level, and foster a community focused on the learning and love of music. To do so, we also maintain a “teaching group” that is audition-based and holds separate rehearsals to be able to provide that musical education to our workshop.