Carlo Gesualdo's "Canzon francese" (MS Add. 30491) serves as the starting point for a dramaturgy of virtual sounds in the work for tape "Gesualdo", in which the processing processes carried out with the computer lay themselves over the object itself like a patina, destroying it and reassembling it. The work is comparable to the work of a painter who, starting from a photographic sketch, begins his process of abstraction by reinterpreting and deforming elements of the object and continues to paint over the original object. It is unpredictable what kind of power the work develops over time. The tonal elements at the beginning form rhythmic modules that lead to repetitive phrases. The form of the work leads to a climax after a long prelude. It is a hypnotic process that creates an aura, as does Gesualdo’s composition.