^The Oxford Dictionary of Music 0199578540 ed. Michael Kennedy, Tim Rutherford-Johnson, Joyce Kennedy-2013 p.256 "operas: Columbus (1933 radio, 1942 stage); Die Zaubergeige (1935, rev. 1954); *Peer Gynt (1938); Circe (1945, rev. 1966 as 17 Tage und 4 Minuten); *Irische Legende (after Yeats, 1955, rev. 1970); Der Revisor (after Gogol's The *Government Inspector, 1957); Die Verlobung in San Domingo (1963). "