Bass player, composer, vocalist, and frontman of the English rock band Pink Floyd, the group known for songs like "Shine On You Crazy Diamond."
He was the chairman of the Cambridge Youth Campaign for Nuclear Disarmament at age fifteen.
He helped compose the soundtrack to the 1970 documentary The Body.
He married Judy Trim in 1969, Carolyn Christie in 1976, Priscilla Phillips in 1993, and Laurie Durning in 2012. He and Durning divorced in 2015. He had three children.
He was in Pink Floyd with Nick Mason.