Arias duets with Flagstad & Lehmann - Melchior, Lauritz 1890-1973; Flagstad, Kirsten 1895-1962; Lehmann, Lotte 1888-1976; Ormandy, Eugene 1899-1985; McArthur, Edwin 1907-1987; Strasfogel, Ignace 1909-1994 (RCA Victor Gold Seal vocal series, 1990)