• 9 Books
• 8 Music Scores
• 3 Sound Recordings
• 1 Videos, Slides, Films

• 2 Compact Discs
• 1 DVDs
• 1 Vinyl Records

• 19 Operas
• 3 Librettos
• 3 Verdi, Giuseppe, 1813-1901
• 2 Chénier, André, 1762-1794
• 2 Falstaff, John, Sir (Fictitious character)
• 1 Acis (Greek mythology)
• 1 Barbiere di Siviglia
• 1 Caesar, Julius
• 1 Carlos, Prince of Asturias, 1545-1568
• 1 Cecilia, Saint
• 1 Courtesans
• 1 Distress (Psychology)
• 1 Don Carlos
• 1 Don Giovanni
• 1 Don Juan (Legendary character)
• 1 Drama
• 1 Falstaff
• 1 Galatea, sea nymph (Greek deity)
• 1 History and criticism
• 1 Kircher, Athanasius, 1602-1680
• 1 Legends
• 1 Libretto
• 1 Mary, Queen of Scots, 1542-1587
• 1 Maximus, Marcus Clodius Pupienus, -238
• 1 Medea, consort of Aegeus, King of Athens (Mythological character)

• 7 Verdi, Giuseppe, 1813-1901
• 4 Boito, Arrigo, 1842-1918
• 4 Porter, Andrew, 1928-2015
• 3 Handel, George Frideric, 1685-1759
• 3 Shakespeare, William, 1564-1616
• 2 Donizetti, Gaetano, 1797-1848
• 2 Giordano, Umberto, 1867-1948
• 2 Illica, Luigi, 1857-1919
• 2 Rossini, Gioacchino, 1792-1868
• 1 Academy of St. Martin-in-the-Fields
• 1 Andriessen, Louis, 1939-2021
• 1 Apter, Ronnie
• 1 Arditi, Luigi, 1822-1903
• 1 Arthaus Musik (Firm)
• 1 Aureli, Aurelio, -1708
• 1 Balocchi, Luigi, 1766-1832
• 1 Bardari, Giuseppe
• 1 Batchelor, Jennifer
• 1 Bayley, Clive
• 1 Beekman, Marcel
• 1 Bruscantini, Sesto
• 1 Busenello, Giovanni Francesco, 1598-1659
• 1 Carella, Giuliano
• 1 Coccia, Carlo, 1782-1873
• 1 Crass, Franz

• 6 French
• 3 German
• 2 Spanish
• 1 Dutch
• 1 Multiple languages

• 8 Librettos
• 5 Vocal scores with piano
• 4 Operas
• 1 Excerpts
• 1 Opera films
• 1 Scores
• 1 Vocal scores
• 1 librettos (documents for music)

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