ABSTRACT
Sound and its physical components are one of the central elements in the relationship between subject and environment. The physical characteristics of sound are aspects of the individual's nature and stand as a natural vector of information that identifies man's communicative and relational nature. The sound's evolutionary power allowed man to determine himself as a communicative being first according to a non-coded sound communication code and then elaborate in evolution, a process of translation of sound into verbal code. The transition from nature to culture invested processes of transformation of sound that form a spatial clue, an element of emphasis of a state of mind; the primary approach of communication of moods has become a primary element of intra-species communication. Musical expression and body expression act in an implicit communication channel, though not always bound to emotional aspects, determining a series of two-way relationships able to form a substantial alliance between action and sound. These concepts lead us to identify in the educational connection, in the phylogenetic organization, in the cultural sophistication of the increasingly detailed responses to the world's growing complexity, the background within which sound and action find reasons for convergence, union, and evolution.
