 He later worked with several orchestras, including at Covent Garden and with the London Symphony Orchestra, London Philharmonic Orchestra, BBC Welsh Orchestra and the BBC Symphony Orchestra where he worked with Pierre Boulez.He had also begun working as a session player, as well as founding the group "Come to the Edge" with Robin Thompson and Morris Pert, which performed regularly with the Japanese percussion virtuoso Stomu Yamashta.His career as an arranger began at this time and his first commission was the debut album for Cockney Rebel; he also arranged their next two albums and worked with other artists including Leo Sayer, John Miles ("Music"), Donovan, Cliff Richard ("Miss You Nights"), Al Stewart ("Modern Times", "Year of the Cat", "Time Passages", "Russians & Americans" and "Between the Wars"), Ambrosia ("Somewhere I've Never Traveled"), David Gilmour, Chris Rea, Mick Fleetwood, The Hollies, Münchener Freiheit, and others.