Écho! was commissioned by l?Opéra national de Paris andLes Jeunes Solistes. The world premiere performance took place on 16th May 2008 at the l?Amphithéâtre Bastille,Paris, France, given by Les Jeunes Solistes.
Echo!
| Instrument (fx guitar, sang m.m.) | Electronics, SATB |
| Genrer (Fx Pop, Rock, Børn m.m.) | Post-1900 |
| Type (fx Instrumentskole o.lign.) | Vokal partitur |
| Sideantal | 60 |
| Media (fx Bog, CD, DVD m.m.) | Noder |
| Publisher/Producent | Chester Music |
| Bidragydere | Saariaho, Kaija (Composer) Barrière, Alexandre (Lyricist) |
| Sprog | Fransk |
| ISBN | 9781783055906 |