- The Piece that Anton Webern Wrote (2008), 1:00pianoCycle: One Minute More
- Pieces (1957)prepared piano and string quartet
- Pierre d’ombre (1991)soprano, clarinet, keyboard, piano, cello and fixed medium
- Les pierres crieront (1998), 22:00cello and orchestra
- Pierrot Lunaire, op 21 (1912), 35:00speaking-singing voice (“Sprechgesang”), flute (piccolo), clarinet (bass clarinet), piano, violin (viola) and cello
- La pietra che canta (2001), 21:00piano, violin, cello and processing
- Pigeon Biset (2010), 5:00piano
- Pim’po (2003)saxophone quartet and processing
- PindarExzisen (2002), 30:00untrained female voice, speaker, shaman, dulcimer, zither, viola
- Pipa Aura Suichi (2022), 10:31stereo fixed medium
- Piri (1971), 11:00clarinet
- Pitch Black (1998), 12:00saxophone quartet and fixed medium
- Pitohui (2007)violin, cello and gamelan
- Pixel Springtail Promenade (2014-15), 15:16multichannel fixed medium (Klangdom: 16-channel)Cycle: Nano-Cosmos
- Place Setting DJ (2008), 1:00pianoCycle: One Minute More
- Plages (1981), 14:00orchestra
- Plaisir d’amour (1983), 7:00piano
- Planetary Folklore II (1983)flute (alto flute), oboe (English horn), clarinet (bass clarinet), piano, 2 percussions, violin, viola and cello
- Planète baobab (1999), 30:00orchestra and fixed medium
- Les Planètes (1983-98, 2011), 33:00piano
- Plateforme (2009), 13:47siren organ and fixed medium
- Play (2013), 47:00orchestra
- Play and Destroy (2005)small ensemble
- Plaything (2021)
- PLB! (2004), 7:20double bass
- plectros IV [1974-I] (1974, 84), 15:002 pianos (percussion) and fixed medium
- Pléïades (1978), 46:00ballet6 percussions
- Plekto (1993), 14:00flute, clarinet, violin, cello, percussion and piano
