RETINA RAVE

I taught a computer to listen to music.
This is what it sees.
the scenes · click one to see it move
  1. Start your music in another browser tab.
  2. Press the button, choose that tab in the share dialog.
  3. Tick “Also share tab audio” — without it there is nothing to hear.

Play music on a speaker, then let this page listen. Loud and close works best.

no music handy? run the built-in demo signal · about & support
? explains what you see · F or double‑click for fullscreen

A free, audio-reactive music visualizer that runs in the browser on WebGL2. The music steers a camera through real mathematical objects: the Mandelbrot set and its Julia sets, the Feigenbaum period-doubling cascade, a particle swarm, a box-fold mandala, the Hopf fibration, and four-dimensional polytopes. Beats, drops and sections are detected live and a director picks and crossfades the scenes.