He was sub-organist of Westminster Abbey from 1962 to 1967, and organist of Christ Church, Oxford from 1970 before returning to Westminster as Organist and Master of the Choristers in 1981. He relinquished his Westminster post in 1987, and then led a career as an international concert organist. He also composed works for the organ, the best-known of which is probably his Alleluyas, written in the style of Olivier Messiaen. Recordings of his organ works originally made in the 1960s on the Argo label have recently been re-issued by Eloquence.