Context
Traditionally, the term Music has often been used to represent most things related to Music. But scores are not music as they are notations that only produce music when performed (or a performance re-played). Similarily, composing and improvising (not music) are arts of organizing sound and/or motion in time.

Music
Music is a natural and intuitive phenomenon operating in the 3 Worlds of Time, Pitch, Energy (ie. "playing field"), and under the 3 distinct and interrelated organization structures of Rhythm, Harmony, and Melody (ie. "rules of the game"). The organization structures are themselves governed by the 4 basic principles of Regularity, Simplicity, Symmetry, and Hierarchy.

Dichotomies
With this definition of Music, we include a page formerly called "2 Faces".