The music was performed primarily by the London Philharmonic Orchestra and three choirs: London Voices (for mixed and all-women choral parts), Wellington Maori-Samoan choir (for all-male choral passages in Fellowship of the Ring) and London Oratory School Schola boy choir. The New Zealand Symphony Orchestra contributed some of the early Moria music, written for an early edit of the film. A wide variety of instrumental and vocal soloists, including members of the films' cast, contributed to the scores as well. Each film calls for at least one soprano and/or alto soloist and one boy soloist.