“[He] specialised particularly in the performance of 20th-century repertoire, working with such composers as Milton Babbitt, John Cage, Elliott Carter, George Crumb, Morton Feldman, Philip Glass, [etc.] … He premiered Glass’s Violin Concerto in 1987 and was the dedicatee of John Cage’s Freeman Etudes – Books I and II, composed between 1977 and 1980.”