Music offers a new insight into human cognition. The musical play with sounds in time, in which we share feelings, gestures and narratives, has fascinated people from all times and cultures. The author studies this semiotic behavior in the light of research from a number of sources. Being an analytical study, the volume combines evidence from neurobiology, developmental psychology and cognitive science. It aims to bridge the gap between music as an empirical object in the world and music as lived experience. This is the semantic aspect of music: how can something like an auditory stream of structured sound evoke such a strong reaction in the