• 3 Music Library (Mills)
• 2 Memorial Library
• 1 Temporary Relocation Library

• 6 Sound Recordings
• 2 Books
• 2 Music Scores
• 2 Videos, Slides, Films

• 1 Blu-ray Discs

• 9 Operas
• 1 Drama

• 12 Hofmannsthal, Hugo von, 1874-1929
• 9 Strauss, Richard, 1864-1949
• 8 Sophocles
• 4 Konzertvereinigung Wiener Staatsopernchor
• 3 Rysanek, Leonie
• 2 Böhm, Karl, 1894-1981
• 2 Meier, Waltraud
• 2 Nilsson, Birgit
• 2 Pape, René
• 2 Wiener Philharmoniker
• 2 Wiener Staatsoper. Orchester
• 1 Abbado, Claudio
• 1 Aken, Frank van
• 1 Arthaus Musik (Firm)
• 1 Bauer, Raimund
• 1 Bayerische Akademie der Wissenschaften
• 1 Bayerischer Rundfunk
• 1 Bolz, Sebastian, 1987-
• 1 Dooner, Daniel
• 1 Erhard, Alexander
• 1 Esper, Simeon, 1974-
• 1 Euripides
• 1 Evans, Anne
• 1 Gambill, Robert
• 1 Gatti, Daniele

• 11 German
• 1 English

• 11 Drama
• 4 Operas
• 2 Live sound recordings
• 2 Scores
• 1 Adaptations
• 1 Made-for-TV movies
• 1 Televised performances
• 1 Translations into German

Limit year range