• 2 Music Library (Mills)

• 6 Sound Recordings

• 1 Compact Discs
• 1 Vinyl Records

• 4 Operas

• 6 Alva, Luigi
• 6 Callas, Maria, 1923-1977
• 6 Gobbi, Tito
• 6 Philharmonia Orchestra (London, England)
• 5 Philharmonia Chorus (London, England)
• 3 Beaumarchais, Pierre Augustin Caron de, 1732-1799
• 3 Ollendorff, Fritz
• 3 Zaccaria, Nicola
• 2 Carlin, Mario
• 2 Carturan, Gabriella
• 1 Philharmonia Chorus

• 2 Operas
• 1 Sound recordings

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