• 9 Music Library (Mills)

• 19 Sound Recordings
• 12 Videos, Slides, Films

• 7 DVDs
• 2 Compact Discs

• 23 Operas
• 2 Overtures
• 1 Grünewald, Matthias, active 16th century
• 1 Iseult (Legendary character)
• 1 Live sound recordings
• 1 Music videos
• 1 Opera
• 1 Rienzo, Cola di, -1354
• 1 Romanticism in music
• 1 Tristan (Legendary character)

• 31 Struckmann, Falk
• 23 Wagner, Richard, 1813-1883
• 13 Polaski, Deborah
• 11 Billy, Bertrand de
• 10 Opus Arte (Firm)
• 8 Gran Teatre del Liceu (Barcelona, Spain). Orquestra Simfònica
• 8 Kupfer, Harry
• 7 Heinrich, Reinhard, 1935-
• 7 Schavernoch, Hans
• 6 Barenboim, Daniel, 1942-
• 6 Botha, Johan
• 6 Deutsche Staatsoper Berlin. Chor
• 6 Halfvarson, Eric
• 6 Treleaven, John, 1950-
• 6 Youn, Kwangchul
• 5 Braun, Lioba
• 5 Kannen, Günter von, 1940-
• 5 Salminen, Matti
• 4 Beaumont, Francisca
• 4 Beethoven, Ludwig van, 1770-1827
• 4 David, Franz Peter
• 4 Matos, Elisabete
• 4 Meier, Waltraud
• 4 Pape, René
• 4 Philharmonisches Staatsorchester Hamburg

• 30 German
• 1 French
• 1 Italian
• 1 No linguistic content

• 11 Operas
• 5 Live sound recordings
• 5 Opera films
• 3 Drama
• 2 Excerpts
• 1 Filmed performances
• 1 Librettos
• 1 Television adaptations

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