Mémoriale (…explosante fixe… Originel)

...explosante-fixe... (French:...exploding-fixed...) is a piece of music composed by Pierre Boulez. Initially conceived in 1971 as a memorial for Igor Stravinsky, who died in April of that year, several different versions of the work were composed by Boulez between 1972 and 1993, culminating in a piece for solo MIDI-flute and chamber orchestra.