- Pain-Beurre (1969), 25:00ensemble, synthetizer, feedback and fixed medium
- The Painted Veil (2019)voice and processing
- Paix (1971), 43:00male voice, saxophone quartet, piano, clavinet, electric guitar, electric bass, percussion and fixed medium
- Paix [final version] (1972), 45:00saxophone quartet, piano, Fender Rhodes piano, clavinet, electric guitar, electric bass, percussion and fixed medium
- Palace (1993)Javanese gamelan
- Palimpsest (1979), 11:00string quintet, oboe, clarinet, bassoon, horn, piano and percussion
- Palimpsest (Nature Morte) (1991)clarinet, trumpet, piano, percussion and double bass
- Pandemic, 2:00
- Pandorasbox, bandoneonpiece (1960)bandoneon
- paNi intiyA (1996-98), 42:51videomusicvideo
- Pantomime (1949)
- fixed medium
- Parade (2016), 7:44chamber orchestra
- Paradies, Nr 101 (2007), 19:00flute and fixed medium
- Paramétrique élargi no 3 (1980)trombone, electronic sounds and fixed medium
- Paramétrique intégré — étude (1980)electronic sounds and fixed medium
- Paramirabo (1978), 15:00flute, violin, cello and piano
- Pareidolia (2021), 10:00
- Parole di San Paolo (1964)mezzo-soprano, 2 flutes, 3 clarinets, harp, piano (celesta), 2 percussions, viola and cello
- Paroles tissées (1965)tenor, harp, piano, percussion, 3 tom-toms, military drum, bass drum, suspended crash cymbal, large tam-tam, 3 tubular bells, xylophone, 10 violins, 3 violas, 3 cellos and double bass
- Parrhesia (2019)voice and processing
- Partch Harp (1987-89), 9:00harp and keyboard
- Particules (2006), 10:00amplified piano, processing and video
- Partiels (1975), 21:0018 musicians
- Partota II (1992), 16:00MIDI keyboard controller (MIDI piano (Yamaha Disklavier), sampler)
- Partota VIII (2003), 11:00MIDI keyboard controller
