Career
He wrote the definitive biography of Otto Klemperer and was a prominent supporter of avant-garde music Peter Heyworth was born in New York City. He was educated at Charterhouse, Göttingen University, and Balliol College, Oxford.
He was the music critic for the Times Educational Supplement from 1952 to 1956 and the music critic of The Observer (London) from 1955 to 1988.
He was the author of Conversations with Klemperer (1973) and Otto Klemperer: His Life and Times (2 vols, 1983-1996. 2nd volume completed by John Lucas).