Conductor Hilary Campbell has been an innovating force in British choral music, not only as founder and director of her own women's chamber choir, Blossom Street, but as a composer and arranger. Describing herself as a freelance choral specialist, Campbell has also directed several other major ensembles, as a guest or on an ongoing basis. She has two master's degrees, one in conducting from the Royal Academy of Music (where she won three prizes as a student), and one, with distinction, in vocal studies at the University of York. She has also done post-graduate work in singing at Trinity College of Music. In 2012 she returned to the Royal Academy of music as a Meaker Fellow; she was the first choral conductor so honored, and she has continued to teach at the school and to be associated with it creatively. Throughout this period, Campbell was working as director of Blossom Street (also known as the Blossom Street Singers), which had been founded in 2003 and with which she issued the holiday album Sleep, holy babe in 2011. She has recorded several more albums with the group on Naxos, including 2019's This Day: Celebrating a Century of British Women's Right to Vote. Campbell has also served as musical director of the Bristol Choral Society, the Chiswick Choir, and the Music Makers of London. She has conducted a large variety of top British ensembles as a guest, including the BBC Symphony Chorus and, as of 2018, the BBC Singers. Campbell co-founded the VOCALIZES music workshop and the Voices of London Festival. She served as composer-in-residence for the Ebor Singers and has won several awards for her choral compositions. Her arrangement of God Save the Queen was performed on the ITV1 television network and at Wimbledon New Theatre, in honor of the 60th birthday of the Prince of Wales.