Evening session with one of the main cultural and experimental agitators of the city that makes singing, the founding seed of the Palau, the center of his intervention. Graphic scores allow you to create group music granting wide freedom to performers, regardless of technique, style or instrument. Graphic scores agree on the meaning of new images to perform them in a laboratory-concert in the Rehearsal Room of the Orfeó Català. A look at composition and improvisation focused on listening and the dynamics, tessitura and texture of the voice. A session that is not alien to the space itself and its connection with architecture.