Two π-out-of-phase standing waves cancel and construct to form spinning black/white lobes accented with neon edges; bass widens lobes, mids accelerate rotation, highs electrify the divide.
Drawn with: a WebGL2 shader.
Reacts to and looks like: gpu, yin-yang and chladni.
Family: Visualiser.
Runs in your browser. The preview above is the same program the renderer uses.