The Mozart Boys Choir Vienna rehearses twice each week. The boys have the option of attending a rehearsal on either Monday or Wednesday. This rehearsal has a focus of studying the repertoire in small groups. In addition, the boys all participate in the Friday rehearsal. Having two rehearsals each week makes it possible for the choir to quickly adapt their repertoire, and also allows them to study big works in a short time.
In addition to these regular rehearsals, each singer takes private voice lessons, learning to sing as soloists as well as choir members.