He was the bass player in the "Surrogate Band" during Pink Floyd's The Wall tour in 1980 and 1981 and can be heard on the live album "Is There Anybody Out There? The Wall Live 1980–81". He also did some keyboards for Pink Floyd's "The Final Cut" album. and on Jack the Lad's last album "Jackpot" in 1976. In addition he played Hammond organ and 12-string guitar during the recording of Roger Waters' solo album "The Pros and Cons of Hitch Hiking" in 1984, but did not take part in Waters' subsequent tours.