- Rondos (1965)flute and harp
- Rosarium (2005, 12), 12:00baritone, piano, flute and harp
- Rothko Chapel (1971), 30:00chorus, viola, celesta and percussion
- Rouge / Ange / Heliograms (1979-80, 2012), 25:00videomusicvideo
- Rouge-mort: Thanatos (1987-89), 16:52stereo fixed medium
- Premiers signes, 2:44
- Derniers jeux, 5:12
- Séduction froide, 4:00
- Ultime danse, 4:52
- Rounds (1966)piano
- La route des pèlerins reclus (1984)orchestra
- Ruby, 1:00pianoCycle: One Minute More
- Les ruines du Paradis (2004), 25:00piccolo, flute in
G , oboe, clarinet, bass clarinet, contrabassoon, horn, trumpet, trombone, piano, percussion, 2 violins, viola, cello and double bass - Rumor Surrexit (1976)violin
- Rumore sui (2002-03), 27:00string quartet
- Run Before Lightning (2004), 9:00flute and piano
- Rural Blue (1981-82), 3:00voice and piano
- Rust (2010), 22:00tu-yo and processing
- Ryoanji (1983-85)flute, percussion and fixed medium
- Rythmes et échos des rivages anticostiens (2007), 17:30
