• 2 Music Library (Mills)

• 3 Books
• 1 Videos, Slides, Films

• 1 DVDs

• 3 Operas
• 1 Librettos

• 1 Behrens, Hildegard
• 1 Channel Four (Great Britain)
• 1 Deutsche Grammophon (Firm)
• 1 Jerusalem, Siegfried
• 1 König, Rosemarie
• 1 Large, Brian
• 1 Levine, James, 1943-2021
• 1 Lisowska, Hanna
• 1 Ludwig, Christa
• 1 Metropolitan Opera (New York, N.Y.)
• 1 Metropolitan Opera (New York, N.Y.). Chorus
• 1 Metropolitan Opera (New York, N.Y.). Orchestra
• 1 Metropolitan Opera Television (Firm)
• 1 Pahlen, Kurt, 1907-2003
• 1 Porter, Andrew, 1928-2015
• 1 Raffell, Anthony
• 1 SEPT (Television station : France)
• 1 Sabor, Rudolph
• 1 Salminen, Matti
• 1 Schenk, Otto
• 1 Universal Music (Firm)
• 1 Wlaschiha, Ekkehard
• 1 Österreichischer Rundfunk

• 2 English

• 3 Librettos
• 1 Nonfiction television programs
• 1 Operas
• 1 Televised performances
• 1 Television adaptations
• 1 librettos (documents for music)

Limit year range