Watch 123Movies. First transmitted in 1964, Benjamin Britten's War Requiem is performed at the Royal Albert Hall. The Melos Ensemble is conducted by Benjamin Britten, and the performers include Heather Harper (soprano), Peter Pears (tenor), Thomas Hemsley (baritone) and Simon Preston (organ and chamber organ). Also featured are the BBC Chorus and Choral Society, Boys from Emanuel School, London Philharmonic Choir, and the BBC Symphony Orchestra.