The piece was written in honour of Pierre Boulez's 75th birthday. Besides the title, put together like a mosaic from three Pierre Boulez pieces entitled Dialogue de l'ombre double, Structures, and Pli selon pli, the homage-character of the piece is also indicated by the Reihe used as a base, originating from the composition entitled Structures. The passage-titles of the form made up of seven sections and the character of the musical material of the individual sections all point to pieces by Boulez though they do not contain a single actual quotation from them. The piece is a one-movement chamber concert in which two emphatically polyphonous clarinet parts play aleading role alongside a string quintet. During concert performances, it is an essential element of the piece that the musicians playing the clarinet parts constantly change their position.
| Arrangement | Ensemble |
| Genres | Post-1900 |
| NumberOfPages | 28 |
| Media | Book(softcover, stapled) |
| Series | EMB Contemporary Music |
| Publisher | Editio Musica Budapest |
| Contributors | Serei, Zsolt(Composer) |
| ISMN | 9790080143940 |