| Dated: | 1958 |
| Instrumentation: | Two / Four-channel tape |
| Timing: | 2'45 |
| Premiere: | At the Philips pavillion in Brussels in 1958 |
| Dedicated to: | |
| Commissioned by: | Composed at the request of Le Corbusier |
| Published: | R.T.F. |
| The tape was created at GRM (Groupe de Recherches Musicales) in Paris, France and was played,
together with Varèse's Poème électronique inside the Philips pavillion, during the World Fair
in Brussels. A revised version of the piece was made in 1968 (Concret PH II) Recording available from Electronic Music Foundation Media EMF102 |