| Dated: | 1963 |
| Instrumentation: | Sextet for piano and brass (3 trumpets and 2 tenor trombones) |
| Timing: | 18' |
| Premiere: | December 16, 1964 at the Domaine Musicale in Paris, performed by the Ensemble de Domaine Musicale and Yuji Takahashi (piano), conducted by Pierre Boulez |
| Dedicated to: | |
| Commissioned by: | |
| Published: | Boosey & Hawkes Music Publishers |
| Recordings available on Mode 53, Atacca Babel 9054-1, Le Chant du Monde LDC 278 368, Analekta/ Fleur de Lys 23111 and Teldec/ Warner Classics 2292 46442-2. |