- C.S.Q.M. (1991)solo clarinet, solo electric guitar, soprano, alto saxophone, trumpet, trombone, keyboard, percussion, cello and double bass
- Cabaret Songs (1979)
- Amor, 5:00
- Cabaret Songs (1998)baritone and chamber orchestra
- Lovepain/Libesleid (2001)
- Wooden Shoes (2008)
- Au revoir, Maria Callas (2008)
- orchestra
- Cada vez mas ausente (1961), 3:00chorus
- Cadenza (1990)piano
- Café-concert-songs (1903)
- La Diva de l’empire, 4:00
- Cancionero (2001), 15:00orchestra
- Canciones (1983)voice, piano and percussion
- Cançò d’Al Arabi (2000)voice and 4 instruments
- Cane (2007), 20:00soprano, toy instruments, ensemble and processing
- flute, oboe, clarinet, piano, percussion, violin, cello and double bass
- Canons (1964)brass quintet
- Cant (2007), 16:00orchestra
- Cantares (2010), 17:00mezzo-soprano and string orchestra
- Cantate (1968)12 voices, soprano, bass, electric guitar, organ and percussion
- Cantate de la dette perpétuelle (2012-13), 30:003 singers, 3 percussionists and 9 instruments
- Canti del Capricorno (1962-72), 45:00solo voice and various instruments
- voice and gong
- voice
- voice
- voice and double bass
- voice
- voice
- voice and saxophone
- voice
- voice
- voice
- voice
- voice
- voice
- voice
- voice and percussion
- voice and processing
- voice
- voice
- voice and percussion
- voice and recorder
- Canti del Capricorno (1962-72)Arr. André Pappathomas
- Cántico (2003), 6:00chorus and cello
- 8 voices, 4 clarinets and saxophone quartet
- tenor, baritone, chorus and ensemble
- Cantique de durées (1960)orchestra
- Canto d’amore (1995), 7:00cello
- Canto del Alba (1979)amplified flute
- Canto del piccolo (1996), 9:00solo piccolo, flute, oboe, clarinet, bassoon, 2 horns, strings and percussion
- Canto del piccolo (1996), 9:00Orch. Martin Nadeaupiccolo and pianoOriginal work: Canto del piccolo
- Canto di Beatrice (1992), 16:002 sopranos and 2 cellos
- Canto di Spettro (1983)solo cello, flute, oboe, clarinet, bassoon, horn, trumpet, trombone, percussion, 2 violins, viola, cello and double bass
- Cantorum Vitae (1980-81)flute, 2 pianos, percussion, cello and fixed medium
