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Ô! Kosmos! (1973)chorus and soprano
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Ô Bali (1989), 11:002 flutes, vibraphone, piano, 2 violins, cello and double bass
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Ô Bali (1989), 11:00Original work: Ô BaliArr. Alexandre David, 2017gamelan
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O cameretta, 3:00
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Ô Java (1993), 12:002 flutes, 2 oboes, 2 clarinets, 2 bassoons, 2 horns, 2 trumpets, trombone, piano, harp, 2 percussions and string instrument
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O Jesu mi dulcissime (1615)
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O Mensch! (Inventaire raisonné de quelques passions Nietzschéennes) (2008-09), 70:00
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O mon amour, 1:55
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O passi sparsi, 3:00
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O Qin (2009), 6:00guqin, yangqin and orchestra
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O Sacrum convivium (1937)mixed chorus
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O Salutaris (1992)mezzo-soprano and organ
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O so sorry (1982), 3:00
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O Virtus (2018)mezzo-soprano, flute, piano and percussion
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Oaristys (1991), 14:36stereo fixed medium
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L’appel du désir [The Call of Desire]
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L’approche [The Approach]
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Étreintes et voluptés [Embraces and Sensuous Delight]
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Pulsion animale [Animal Urges]
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L’éclatement [Scattering]
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Désinence [Inflection]
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Objets perdus (1991), 18:00string quartet
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Obsession (1973)3 flutes, oboe, clarinet, bassoon, horn, piano, 2 percussions, 2 violins, 2 violas and 2 cellos
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L’Océantume (2009), 90:00mezzo-soprano, piano and saxophone quartet
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Octandre (1923)flute, oboe, clarinet, bassoon, horn, trumpet, trombone and double bass
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Octet (1979)string quartet, 2 flutes (piccolos), 2 clarinets (bass clarinets) and 2 pianos
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Octet (1996)flute, oboe, clarinet, piano, percussion, violin, cello and double bass
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Ode à la Terre (2013), 8:09other instrument, oriental tenor, Inuit throat singer, string quintet, string instrument, string instrument, jazz piano and 3 percussions
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Ode à l’anonyme (1984)flute and feedback process
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Oedo nihonbashi, 3:00guitar, percussion, piano, voice and shamisen
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L’œil écoute (1970), 19:17stereo fixed medium
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Offenes Lied (1986), 9:002 sopranos and clarinet
