Introduction - electronic sounds - low holds & rhythms in high register. Silence
Electronic and concrete sounds - mainly serious registers - clusters, falls. Lines going through all registers - concrete sounds filters. Silence
Polyphony. Organ (rhythms, clusters etc.) & synthesizer. Silence
Rhythmic sequence, constantly changing rhythmic pattern. Polyrhythmia. Silence
Epilogue - coda - Truncated repeat of A.
Electronic Sounds (falls, glissandi, low holds, oscillating sounds), concrete sounds (transformed aircraft engines, airport noises, etc.). Silence
Rhythmic sequence - start in monophony, then, track 1 and 3: polyrhythm one to three voices on varied model. Tracks 2 and 3: polyrhythm to to three voices on varied model. Electronic sounds only. Silence
Melodies of electronic sounds, clusters, oscillating sounds. Silence
Epilogue - coda - Resumption of A & drops in successive entries 5 apart
Wind noise on runways 1,2 and 4 - Breath rhythmic on runway 3. Silence
Successive entry on electronic sounds (oscillating, white noise, percussion, clusters).
Polyphony of electronic and concrete sounds & screams. Silence
Tracks1,2 and 4: synthesizer sounds (scales in micro-intervals). Track 3: bass vocals & electronic sounds. Silence
Rhythmic Sequence. Track 1 and 3: three voices polyrhythm. Track 2 and 4: two voices polyrhythm.
Introduction - Very low oscillating sounds, the 4 tracks in unison. Then, successive entries at 5 intervals in concrete sounds.
Rhythms in concrete sounds on tracks 2 and 4. Then, entries of tracks 1 and 3, still in concrete sounds. Silence
Eight doubled voices - Texts spoken, filtered, backwards etc. & clusters. Silence
Electronic sounds - drops, slippery, sustained sounds, on all registers. Silence
Rhythmic sequence (rhythms for three voices on tracks 1 and 3. Then, inputs tracks 2 and 4, rhythms for two voices).
Melody on the synthesizer on track 3. Subsequent entries of the other three tracks with gliding sounds, micro-intervals, etc. Silence
Tracks 1 and 3 - Pop rhythms. Then, inputs tracks 2 and 4 with superimposed melodies & electronic sounds.
Rhythmic sequence - Final. Tracks 2 and 4: Irregular rhythms with three evolving voices. Electronic sounds. Entrances atof tracks and 3 with melodies, clusters.