- Alexandra et des paysages imaginés (2020), 9:38multichannel fixed medium
- Algorythme (2004), 8:40nay (or flute), orchestra and 2 percussions
- Alice & friends (1990), 23:00flute, percussion, soprano, violin and cello
- Alice au pays des merveilles (2003), 45:00orchestra and fixed medium
- Alien Lands (2011)4 percussions
- Alighieri (2003), 18:00orchestra and saxophone quartet
- All the borrowed future (2018)
- All Thumbs (1991)clarinet, trumpet, piano, percussion and double bass
- Alleluia (1989)voice and piano
- Aller-retour (1988)flute, bass clarinet, horn, English horn, trumpet, trombone, 2 percussions, violin, cello and double bass
- Alma & Oskar (1995), 9:30voice and piano
- Alma & Oskar (1995), 9:30Arr. John Rea, 1996mezzo-soprano, tenor and orchestraOriginal work: Alma & Oskar
- Alma & Oskar (1995), 9:30Arr. John Rea, 2001soprano, baritone and ensembleOriginal work: Alma & Oskar
- Alma & Oskar (1995), 9:30Arr. John Rea, 1995mezzo-soprano, tenor and pianoOriginal work: Alma & Oskar
- Alonetogetherall (1992), 18:00clarinet, trumpet, piano, percussion and double bass
- Alter-Face (2004), 10:00
- Alternance (1961-62)6 percussions
- Altus (2004-05), 9:00ensemble
- Alvéoles (2005)
- Always Quiet, 2:00Cycle: 2 Minutes From Home
- keyboards, synthesizers and prepared drum kit
- Amali (2003), 6:02flute, string instrument, percussion and string quintet
- Ambient V (1995), 10:002 violins
- L’améga gap gareg huragam pavaag (2008), 35:18
- Amerika (2001), 13:00flute, oboe, clarinet, horn, trumpet, trombone, 2 percussions, piano and string quartet
- L’Amérique d’après Tiepolo (2016)chorus and ensemble
- Amers (1972-73)flute, oboe, 3 clarinets, bassoon, horn, trumpet, trombone, harp, celesta, 2 percussions, 2 violins, viola, cello and double bass
- Amnesia (1993)flute (alto flute), clarinet (bass clarinet), piano, percussion, violin, viola and cello
