• 2 Special Collections (Memorial Library)

• 46 Sound Recordings
• 43 Music Scores
• 13 Books
• 12 Videos, Slides, Films
• 1 Mixed Materials

• 21 Vinyl Records
• 13 Compact Discs
• 5 DVDs
• 2 VHS Videocassettes

• 87 Operas
• 7 Chénier, André, 1762-1794
• 5 Puccini, Giacomo, 1858-1924
• 2 Bohème
• 2 Librettos
• 1 Americans
• 1 Archivio storico Ricordi
• 1 Columbus, Christopher
• 1 History
• 1 Interracial marriage
• 1 Madama Butterfly
• 1 Man-woman relationships
• 1 Music
• 1 Promptbooks
• 1 Ricordi (Firm)
• 1 Tosca

• 88 Puccini, Giacomo, 1858-1924
• 70 Giacosa, Giuseppe, 1847-1906
• 15 Carignani, Carlo
• 15 Murger, Henri, 1822-1861
• 14 Giordano, Umberto, 1867-1948
• 14 Sardou, Victorien, 1831-1908
• 13 Belasco, David, 1853-1931
• 11 Tams-Witmark/Wisconsin Collection
• 10 Domingo, Plácido, 1941-
• 10 Long, John Luther, 1861-1927
• 9 Di Stefano, Giuseppe, 1921-2008
• 9 Mascagni, Pietro, 1863-1945
• 9 Teatro dell'opera (Rome, Italy)
• 8 Karajan, Herbert von
• 8 Oliva, Domenico
• 8 Praga, Marco, 1862-1929
• 7 Freni, Mirella, 1935-2020
• 7 Teatro alla Scala
• 6 Callas, Maria, 1923-1977
• 6 Scotto, Renata, 1934-2023
• 5 Carreras, José
• 5 Corena, Fernando
• 5 Gobbi, Tito
• 5 Metropolitan Opera (New York, N.Y.)

• 30 English
• 3 German
• 1 Russian

• 1 Japan

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