"Fultot and Turvey highlight a series of parallels between Uexküll’s musical theory of meaning and Gibson’s emphasis on a “complementarity between organism and environment” that enables the former to directly pick up on affordances specified by information available in the latter (18). They outline two ways of conceiving the organism/environment relationship, as the familiar representationalist dualism that is to be rejected, or as a duality, which involves a different kind of symmetry between organism and environment. Where a representational symmetry involves “the preservation of all the relations and their order,” duality preserves “the number of relations but can transform their quality and revert their order” (19). Representation entails the creation of duplicates or copies, while duality works on the basis of correspondences, such as the peg of a cogwheel fitting into the socket of another''.

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