• 2 Music Library (Mills)

• 13 Sound Recordings
• 4 Videos, Slides, Films

• 1 Compact Discs
• 1 DVDs

• 15 Operas
• 1 Electra (Greek mythology)

• 16 Wagner, Richard, 1813-1883
• 10 Watson, Linda (Soprano)
• 8 Thielemann, Christian, 1959-
• 7 Dohmen, Albert
• 7 Watson, Linda, soprano
• 6 Duisburger Philharmoniker
• 6 Kober, Axel, 1970-
• 5 Gould, Stephen
• 4 Ferede, Sarah
• 4 Konieczny, Lukasz
• 4 König, Hans-Peter
• 4 Rutherford, James, 1972-
• 4 Shore, Andrew
• 4 Welch, Corby
• 3 Bayreuther Festspiele., Orchester Orchester
• 3 Haller, Edith
• 3 Opus Arte (Firm)
• 3 Westbroek, Eva-Maria
• 3 Wottrich, Endrik
• 2 Berkeley-Steele, Richard
• 2 Billy, Bertrand de
• 2 Braun, Lioba
• 2 Breedt, Michelle
• 2 Deutschen Oper am Rhein. Chor
• 2 Dike, Martina

• 17 German

• 3 Excerpts
• 3 Live sound recordings
• 3 Operas
• 1 Drama
• 1 Nonfiction films
• 1 Opera films

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