First violinist of English Concert from 1972 to 1991; sub-leader of the English Chamber Orchestra from 1974 to 1978 and leader of the City Of London Sinfonia from 1980 to 1989.
He played regularly with The Academy Of Ancient Music throughout the 1980s.
In 1990, he founded the group Collegium Musicum 90 with Richard Hickox.
He has also made regular collaboration with Collegium Musicum Telemann in Osaka and Haydn Sinfonietta in Vienna. He plays in period-instrument chamber group The Music Collection with Susan Alexander-Max (fortepiano) and Jennifer Ward Clarke (cello).