Music is an element that appears systematically as part of the rhetorical strategy of audiovisual narratives and is, to that extent, a constitutive part of them. Since audiovisual narratives, especially fictional ones, can be considered as poetic works in the Aristotelian sense, it is worth asking about the role that music plays in this poetic condition. In this research article, a theoretical proposal along these lines is put forward that will serve both to explain the role of music in the work of fiction and to analyze it. For the development of this proposal, the basis of the theory is based on the Aristotelian corpus (in particular, Poetics,Politics and Rhetoric), from which music can be understood as an expressive resource linked to the representation and creation of emotion. For this point, it is proposed to develop a theory of emotions, elaborated fundamentally from the studies of...