This cahier documents how the experimental inquiry of the interaction between audiovisual form and musical polyphony gave this research project its specific form.

The articles try to shed light on some of the subtopics of this inquiry: how the multilayered texture of polyphony is mapped to multiple audiovisual elements in a spatial structure. The role that anamorphosis played in this process is analyzed: anamorphosis as a visual technique, but also what constitutes anamorphosis into a ?mystery in two acts?, how it is a corruption of the rules of linear perspective and how this re-injects mobility into our perception process. This phenomenological approach of anamorphosis goes together with an investigation of the friction between sound and vision in the spatialized audiovisual form, and how that friction is related to a friction between sensory modes of the human perceptual system. Documenting an inquiry into the interaction between audiovisual form and musical polyphony this cahier ? nally also describes how the interaction differs in the two phases of the project, and how it is often more a kind of an intermedial relationship than a form of remediation in the strict sense