1182-1226 1906-1983 1908-1992 1931- 1934-1998 1938- 1953- 20thcenturysettings alfred beecroft chen drama elisabeth francis historyandcriticism historyandcriticismfrancis joan kaija larsen libby lutyens mamlok messiaen musicalsettings musicalsettingsfrancis norma olivier saariaho schnittke sofia tower ursula vocalmusic yi