• 17 Music Library (Mills)

• 24 Sound Recordings

• 15 Vinyl Records
• 4 Compact Discs

• 10 Electronic music
• 5 Choruses, Secular (Mixed voices) with instrumental ensemble
• 4 Percussion and piano music
• 4 Piano music
• 3 Instrumental ensembles
• 2 Orchestral music
• 2 Percussion ensembles
• 2 Percussion music
• 2 Quartets (Electronium, piano, percussion, viola)
• 1 Aleatory music
• 1 Ballets
• 1 Baudelaire, Charles, 1821-1867
• 1 Choruses, Secular (Mixed voices, 4 parts) with instrumental ensemble
• 1 Choruses, Secular (Women's voices) with instrumental ensemble
• 1 Concertos
• 1 Concertos (Pianos (2))
• 1 Concertos (Violin with chamber orchestra)
• 1 Electronic and player piano music
• 1 Heissenbüttel, Helmut, 1921-1996
• 1 Monologues with music (Piano)
• 1 Music
• 1 Musical settings
• 1 Organ and electronic music
• 1 Organ with instrumental ensemble
• 1 Piano and electronic music

• 9 Kontarsky, Alfons
• 7 Bojé, Harald
• 6 Fritsch, Johannes
• 5 Arroyo, Martina
• 5 Kölner Rundfunkchor
• 4 Alings, Fred
• 4 Caskel, Christoph
• 4 Gehlhaar, Rolf, 1943-2019
• 4 Kagel, Mauricio
• 4 Tudor, David, 1926-1996
• 3 Kölner Rundfunk-Sinfonie-Orchester
• 2 Arden, David
• 2 Boulez, Pierre, 1925-2016
• 2 Brown, Earle, 1926-2002
• 2 Cage, John
• 2 Gawriloff, Saschko
• 2 Kontarsky, Bernhard
• 2 Kölner Rundfunkorchester
• 2 Stiebler, Ernstalbrecht, 1934-
• 2 Stravinsky, Igor, 1882-1971
• 1 Ackermann, Meta
• 1 Alings, Alfred, 1923-
• 1 Anderson, Sylvia

• 8 German
• 8 Unknown
• 6 No linguistic content
• 2 English
• 2 Italian
• 2 Undetermined
• 1 Lithuanian
• 1 Spanish

• 1 Darmstadt
• 1 Darmstadt (Germany)
• 1 Germany

• 5 Aleatory music
• 2 Musique concrète
• 1 Excerpts, Arranged
• 1 Music
• 1 Musical settings

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