• 3 Music Library (Mills)

• 3 NVC Arts (Firm)
• 2 British Broadcasting Corporation. Television Service
• 2 Puccini, Giacomo, 1858-1924
• 2 Royal Opera House (London, England)
• 1 Allen, Thomas, 1944-
• 1 Belasco, David, 1853-1931
• 1 Bruson, Renato
• 1 Burton, Humphrey, 1931-
• 1 Carroli, Silvano
• 1 Civinini, G. (Guelfo), 1873-1954
• 1 Covent Garden Video Productions
• 1 Faggioni, Piero
• 1 Freni, Mirella, 1935-2020
• 1 Friedrich, Götz
• 1 Ghiaurov, Nicolai, 1929-2004
• 1 Hugo, Victor, 1802-1885
• 1 Montell, Preben
• 1 Muti, Riccardo
• 1 Neblett, Carol
• 1 Oliva, Domenico
• 1 Piave, Francesco Maria, 1810-1876
• 1 Praga, Marco, 1862-1929
• 1 Prévost, abbé, 1697-1763

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