| Dated: | 1956-1962 |
| Instrumentation: | String quartet |
| Timing: | 11' |
| Premiere: | 1962 in Paris, France, performed by Quatuor Bernède |
| Dedicated to: | --- |
| Commissioned by: | --- |
| Published: | Boosey & Hawkes Music Publishers |
| Alternative title: ST/4-1,080262, meaning: Stochastic composition for 4 instruments, first of its kind,
calculated on 8 February 1962. Recording available on Disques Montaigne 782005. |