In the piece L'insistance des possibles (the insistence of the possible), imitation is the basic issue. By revealing the irregularities due to successive duplication attempts, it shows the impossibility of exact imitation and, consequently, activates the ability to notice very slight differences. The musicians follow a script consisting of processes to be implemented. Their activity is mainly a reaction to what they listen to. The piece leads to a way of listening between consciousness and unconsciousness, that makes us attentive to the presence and variation of surrounding sounds, which interact with the discontinuous thread of our thoughts.