- La plénitude du vide (2005), 60:006 invented instruments
- Plume (1974-92), 15:00soprano and cello
- Un homme paisible (1974), 6:00
- Plume au plafond (1992), 4:00
- Plume à Casablanca (1989), 5:00
- Plus que la plus que lente (1996), 11:00alto saxophone (improviser), flute, clarinet, violin, cello, piano, percussion and conductor obbligato
- poco a poco… meno mosso (2002), 9:00violin and viola
- Poème d’appartenance (2008), 8:30chamber orchestra
- Poème électronique (1958), 7:543-channel fixed medium
- Poème symphonique (1962)100 metronomes
- Poesiole Notturne (1996), 15:00soprano and chamber orchestra
- The Poet Thinks (2020), 5:00singing pianist (or pianist and singing)
- Les poètes, 4:39
- Pohjatuuli, hommage à Sibelius (1983), 25:00clarinet, 2 horns, trumpet, trombone, 3 percussions, 2 cellos and 2 double basses
- Point de passage (1997), 11:46stereo fixed medium
- Point Oméga, 8:00
- Points de fuite (1982), 12:21stereo fixed medium
- Le poisson qui avait vu son reflet (1999), 14:00violin, cello and piano
- Pole, Nr 30 (1969-70)2 electroniums
- Polichromia (1968)clarinet, trombone, piano and cello
- Pong (2002), 9:007 musicians
- Les ponts enfouis (1999), 14:30violin, cello and piano
- Pop-Art (2001-02, 11)flute, piccolo, clarinet, violin, viola, cello and piano
- 4 horns, 4 trumpets, 2 trombones, 2 tubas and 4 percussions
- Portals / Portails (2001), 15:00violin, viola, cello and processing
- Portals of Intent (1993), 18:00orchestra
- La porte (1987), 45:30soprano and percussion
- Opera | Tale — La porte (preview)
- La Porte — Échange entre les artistes de l’ancienne et de la nouvelle production (suite)
- José Evangelista, Alexis Nouss — La porte (1987)
- José Evangelista, Alexis Nouss — La porte (1987)
- José Evangelista, Alexis Nouss — La porte (1987)
- José Evangelista, Alexis Nouss — La porte (1987)
- Portrait en boucle (1981), 7:00Micheline Coulombe Saint-Marcoux, Serge Garant, Michel Gonneville, Bruce Mather, Jean Papineau-Couture, Gilles Tremblayclarinet, horn, piano, percussion, violin and cello
- piano
- violin and piano
- Portrait parle (2006), 12:00violin, cello and piano
- tuba and processing
