E-flat clarinet
"L'Évolution du vol", female voice (+ hurdy-gurdy), E-flat clarinet (+ bass clarinet, contrabass clarinet), double bass, piano (+ harmonium), 2 percussion, 1991–93 (sections 2–7 of its eight sections may be performed separately: "l'homme et la vérité", female voice, piano; "l'ascension"; "l'être-ange", female voice [+ hurdy-gurdy], E-flat clarinet; "nuée"; "descente/désir", female voice, bass clarinet, double bass; "le vent, l'arbre et le temps")