Plot: The fourth in a series of five programmes from the 1970 Season of Henry Wood Promenade Concerts at the Royal Albert Hall. Stanford Robinson conducts the BBC Choral Society, BBC Concert Orchestra in excerpts from The Yeomen of the Guard, The Pirates of Penzance, The Mikado with Valerie Masterton (soprano), Patricia Kern (mezzo-soprano), Jean Allister (contralto), John Mitchinson (tenor), Derek Hammond-Stroud (baritone), Donald Adams (bass) Introduced by Richard Baker