• 9 Music Library (Mills)

• 16 Sound Recordings
• 4 Videos, Slides, Films

• 3 Compact Discs
• 3 DVDs
• 2 Vinyl Records
• 1 VHS Videocassettes

• 14 Operas
• 1 Boccanegra, Simone, -1363
• 1 Macbeth, King of Scotland, active 11th century

• 8 Ghiaurov, Nicolai, 1929-2004
• 8 Milnes, Sherrill
• 7 Teatro alla Scala
• 5 Cotrubas, Ileana
• 4 Bruson, Renato
• 4 Cappuccilli, Piero
• 4 Cossotto, Fiorenza
• 4 Giacomotti, Alfredo
• 4 John Alldis Choir
• 4 Kleiber, Carlos, 1930-2004
• 4 London Symphony Orchestra
• 4 Muti, Riccardo
• 4 Price, Leontyne
• 4 Rivas, Angel de Saavedra, duque de, 1791-1865
• 3 Abbado, Claudio
• 3 Bacquier, Gabriel
• 3 Bayerische Staatsoper München. Chor
• 3 Bayerisches Staatsorchester
• 3 Dumas, Alexandre, 1824-1895
• 3 Foiani, Giovanni
• 3 Freni, Mirella, 1935-2020
• 3 Giaiotti, Bonaldo

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

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