4.1-channel fixed medium
Premiere: December 2, 2004, Premiere of the first version: Musique instrumentale d’aujourd’hui: Ensemble Ö, Maison de la culture Côte-des-Neiges, Montréal (Québec) / January 22, 2005, Premiere of the final version: Akousma (1): Portrait, Studio Hydro-Québec — Monument-National, Montréal (Québec)