Pierre Boulez · 1925–2016 · French
| Composed | 1955 |
| Instrumentation | 1 0 0 0 — perc |
| Duration | 35 minutes |
| Soloists | Alto voice |
| Tier | Discovery — worth programming, rarely heard |
| Editions & hire | Universal Edition ↗ |
| Source | Universal Edition ↗ |
Read in standard international shorthand: flutes · oboes · clarinets · bassoons — horns · trumpets · trombones · tuba — timpani · percussion — harp · keyboard. Section counts include doubling players. Always confirm against the publisher's official parts list before contracting musicians or renting materials.