Five movements, played without a break. Each movement is characterized by a colour chosen arbitrarily by "nonfunctional" analogy (1°: Dark red; II°: Blue-green; III°: Blue; IV°: Yellow; V° Dark green) and is based on processes directed at obtaining continuous sounds on the piano - like the sounds produced by stringed instruments - by means of a technique which the composer has invented and has frequently demonstrated in public since the early Sixties. In addition, the by now classic "prepared piano" of John Cage accompanies contrapuntally the development of the five movements.