| Dated: | 1977 |
| Instrumentation: | 8-channel tape |
| Timing: | 45'48" |
| Premiere: | February 11, 1978 in Paris on the occasion of the inauguration of the Centre Georges Pompidou |
| Dedicated to: | |
| Commissioned by: | |
| Published: | Editions Salabert 19319 |
| Tape was created at CEMAMu in Paris and at WDR in Cologne, Germany. Recording available from Auvidis-Montaigne MO 782058 |