Music proves and demonstrates the Conservation of a Circle is the core, and, thus, the only, dynamic in Nature. Yin and yang (ancient) is zero and one (modern), minor and major (music), female and male (Nature). Sound is an infinite circumference (a circle), light is an infinite diameter (a line), and music proves you need both in order to have either (resonance) (a wave) (notes) (intervals) (chords) (movements) (symphonies) (compositions) (performances).