• 1 Music Library (Mills)

• 3 Sound Recordings

• 1 Compact Discs

• 2 Operas

• 3 Da Ponte, Lorenzo, 1749-1838
• 2 Alva, Luigi
• 2 Cappuccilli, Piero
• 2 Frick, Gottlob, 1906-1994
• 2 Giulini, Carlo Maria
• 2 Philharmonia Chorus (London, England)
• 2 Philharmonia Orchestra (London, England)
• 2 Sciutti, Graziella
• 2 Sutherland, Joan, 1926-2010
• 2 Taddei, Giuseppe
• 2 Wächter, Eberhard
• 1 Dermota, Anton
• 1 Furtwängler, Wilhelm, 1886-1954
• 1 Gobbi, Tito
• 1 Greindl, Josef
• 1 Kin Lop Tse Collection
• 1 Konzertvereinigung Wiener Staatsopernchor
• 1 Kunz, Erich, 1909-1995
• 1 Poell, Alfred, 1900-1968
• 1 Schmidt, Heinrich, 1904-
• 1 Seefried, Irmgard
• 1 Welitsch, Ljuba
• 1 Wiener Philharmoniker

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