Répons, Pierre Boulez is one of the peaks of spatial music with live electronics. Like the great liturgical music by Gabrieli and Monteverdi, who took advantage all volumes of the Basilica San Marco in Venice, Répons a dialogue through space an instrumental ensemble, in the center, six soloists, scattered throughout the room, and electronics. The work will be performed twice, giving the public an opportunity to better appreciate the work of spatialization.