• 9 Music Library (Mills)

• 18 Sound Recordings
• 1 Videos, Slides, Films

• 6 Vinyl Records
• 1 Compact Discs
• 1 DVDs

• 12 Operas

• 19 Mozart, Wolfgang Amadeus, 1756-1791
• 10 Fischer-Dieskau, Dietrich, 1925-2012
• 7 Ludwig, Christa
• 7 Prey, Hermann, 1929-1998
• 7 Schwarzkopf, Elisabeth
• 6 Berry, Walter
• 6 Konzertvereinigung Wiener Staatsopernchor
• 6 Wiener Philharmoniker
• 5 Janowitz, Gundula
• 5 Mathis, Edith
• 5 Philharmonia Chorus (London, England)
• 5 Philharmonia Orchestra (London, England)
• 4 Kraus, Alfredo
• 4 Schreier, Peter
• 4 Steffek, Hanny, 1927-2010
• 4 Taddei, Giuseppe
• 3 Deutsche Oper Berlin
• 3 Kunz, Erich, 1909-1995
• 3 Troyanos, Tatiana
• 2 Arroyo, Martina
• 2 Beaumarchais, Pierre Augustin Caron de, 1732-1799
• 2 Della Casa, Lisa
• 2 Dickie, Murray, 1924-1995

• 7 Operas
• 3 Live sound recordings
• 1 Excerpts
• 1 Opera films
• 1 Sound recordings

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