An old Chinese philosophical concept is Yin-Yang

Equal components yield the whole shebang

Dubbed Ying-Yang in American slang

Windblown shut doors bang

Tugged heartstrings pang

Professors' harangue

Yin-Yang

Yin-Yang

Cymbals clang

Swinging bell rang

Vibrating vocal chords sang

Silent guitars when strummed twang

From man and woman humans sprang

Whipped sugar and egg whites make meringue