To answer the question “at what semiotic level does mudic communicate?”, we distinguish three semiotic flows of musical narrativity. The first flow of narrativity is called “substance”, and corresponds to primary narrativity present in all music and in sound itself. The second flow of narrativity is called “frame” and corresponds to the way time is organized – problematized – in a musical piece, a style, an era. The third flow of narrativity is called “plot” and corresponds to the emplotment of a work of art. Having clarified the nature of this emplotment by using the concept of “narrative tension”, we then study its actualization by the listener, and more specifically the interaction between reader and text, by insisting on three factors that make it possible : intentionality, embodied simulation and forms of vitality.