• 32 Music Scores
• 19 Sound Recordings
• 7 Books
• 1 Mixed Materials
• 1 Videos, Slides, Films

• 13 Vinyl Records
• 2 Compact Discs
• 1 VHS Videocassettes

• 50 Operas
• 2 Trovatore
• 2 Verdi, Giuseppe, 1813-1901
• 1 García Gutiérrez, Antonio, 1813-1884
• 1 Librettos
• 1 Promptbooks
• 1 Trovador

• 13 Tams-Witmark/Wisconsin Collection
• 11 García Gutiérrez, Antonio, 1813-1884
• 6 Schiller, Friedrich, 1759-1805
• 6 Tozzi, Giorgio
• 5 Warren, Leonard, 1911-1960
• 4 Barbieri, Fedora
• 4 Macfarren, Natalia, approximately 1827-1916
• 4 Price, Leontyne
• 4 Teatro dell'opera (Rome, Italy)
• 4 Voltaire, 1694-1778
• 3 Basile, Arturo
• 3 Domingo, Plácido, 1941-
• 3 Elias, Rosalind
• 3 Simionato, Giulietta
• 3 Tucker, Richard, 1913-1975
• 2 Bergonzi, Carlo
• 2 Björling, Jussi, 1911-1960
• 2 Callas, Maria, 1923-1977
• 2 Castelvecchi, Stefano, 1960-
• 2 Cellini, Renato
• 2 Cheskin, Jonathan, 1967-
• 2 Cossotto, Fiorenza
• 2 Del Monaco, Mario, 1915-1982

• 53 Italian
• 18 English
• 5 German
• 3 French

• 1 Italy

• 28 Vocal scores with piano
• 13 Operas
• 8 Librettos
• 4 Scores
• 3 Excerpts
• 1 Musical settings
• 1 Opera films
• 1 Sound recordings

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