 He studied at Christ Church, Oxford and the Royal College of Music in London.He is most noted for his intense research of Beethoven's works, particularly the new edition of Beethoven's nine symphonies for Bärenreiter.This edition has been used by conductors of the standing of Claudio Abbado, Bernard Haitink, Sir Simon Rattle, Philippe Herreweghe, Osmo Vänskä and David Zinman and orchestras such as the Hanover Band, Minnesota Orchestra, and the Orchestre Révolutionnaire et Romantique.