• 4 Music Library (Mills)

• 7 Sound Recordings
• 1 Videos, Slides, Films

• 3 Compact Discs
• 1 DVDs
• 1 Vinyl Records

• 6 Operas

• 8 Sonnleithner, Joseph Ferdinand, 1766-1835
• 7 Treitschke, Georg Friedrich, 1776-1842
• 4 Adam, Theo
• 4 Behrens, Hildegard
• 4 Bernstein, Leonard, 1918-1990
• 4 Chicago Symphony Chorus
• 4 Chicago Symphony Orchestra
• 4 Dallapozza, Adolf
• 4 Ghazarian, Sona
• 4 Hofmann, Peter, 1944-2010
• 4 Howell, Gwynne
• 4 Janowitz, Gundula
• 4 Jungwirth, Manfred, 1919-1999
• 4 Kollo, René, 1937-
• 4 Konzertvereinigung Wiener Staatsopernchor
• 4 Solti, Georg, 1912-1997
• 3 Bouilly, J. N. (Jean Nicolas), 1763-1842
• 3 Fischer-Dieskau, Dietrich, 1925-2012
• 3 Kuebler, David
• 3 Popp, Lucia
• 3 Wiener Philharmoniker
• 1 Bei, Leo
• 1 Breuning, Stephan von

• 8 German

• 3 Operas
• 1 Opera films

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