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Lux aeterna
for choir (SSAATTBB)
Lux antiqua
for spatialized choir SMATRB
Lux Antiqua
for spatialized choir SSAATB
One
for percussion ensemble
Ostinati
open score for chamber ensemble
Ouroboros
Passacaglia for Orchestra
Parallel #1
for 2 or more pianos (or harps)
Parallel #2
(for multiple 'impulse-decay' instruments)
Perpetuum Mobile
for orchestra
Pièce froide
for solo piano; from "Trois morceaux en forme de Satie"
Pulses
Open score for any 5 or more melodic instruments
Quickening
open score for chamber ensemble