| Dated: | 1997 |
| Instrumentation: | percussion and ensemble of 12 musicians: 1,1,1,1 - 1,1,1,0 and strings (1,1,1,1,1) |
| Timing: | 3'30 |
| Premiere: | November 1997 at the Huddersfield Festival of Contemporary Music |
| Dedicated to: | Evelyn Glennie and the London Sinfonietta |
| Commissioned by: | |
| Published: | Editions Salabert |
| Recording available at BV Haast CD 9903. Xenakis' last completed work |