Jocelyn Hagen composes music that has been described as "simply magical" (Fanfare Magazine) and "dramatic and deeply moving" (Star Tribune, Minneapolis/St. Paul). Her first forays into composition were via songwriting, and this is very evident in her work. The majority of her compositional output is for the voice: solo, chamber and choral.
In 2015, Test Pilot, her dance opera collaboration with choreographer Penelope Freeh, received a Sage Award for "Outstanding Design," and the panel declared the work "a tour de force of originality." She has been commissioned by Conspirare, the Minnesota Orchestra, the Houston Chamber Choir, The Singers, the American Choral Directors Association, the Texas, Minnesota, Connecticut, and Georgia Choral Directors Associations, Cantus, VocalEssence, the St. Olaf Band and the Metropolitan Symphony, among others. Her work is independently published through JH Music, as well as Graphite Publishing, G. Schirmer, Santa Barbara, and Boosey and Hawkes