• 2 Music Library (Mills)

• 3 Videos, Slides, Films

• 2 DVDs
• 1 VHS Videocassettes

• 3 Verdi, Giuseppe, 1813-1901
• 2 Abbado, Claudio
• 2 Grist, Reri
• 2 Ricciarelli, Katia
• 2 Royal Opera House (London, England)
• 2 Schenk, Otto
• 2 Scribe, Eugène, 1791-1861
• 2 Somma, Antonio, 1809-1864
• 1 British Broadcasting Corporation. Television Service
• 1 Cammarano, Salvatore, 1801-1852
• 1 Cossotto, Fiorenza
• 1 Covent Garden Pioneer
• 1 Dam, José van
• 1 García Gutiérrez, Antonio, 1813-1884
• 1 Kabaivanska, Raĭna, 1934-
• 1 Karajan, Herbert von
• 1 Kultur International Films
• 1 Royal Opera House (London, England). Chorus
• 1 Royal Opera House (London, England). Orchestra
• 1 Schneider-Siemssen, Günther
• 1 TDK Mediactive (Firm)
• 1 Vernon, John, 1927-
• 1 Wiener Staatsoper

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