Improvisation tinged with humor and humility, a rare approach. From the strangely nerdy harpsichord to the spirit of serenity and clusters of small noises and explosions, from the male vocals competing without meaning, trying to scream higher and higher, to the supervisor berating students for smoking, ‘Couper Les Tchou-Tchou’ delivers new ideas and much-needed rawness to a frequently fixed and ossified genre.