Show HN: MIDI Visualizer (opens in new tab)

I wanted to make a music visualizer that would show all of the notes and show what chord is playing. To make the analysis easier and accurate I stuck to MIDI only input.

The main presets are: - Warp: A kaleidoscopic view - Stars: Shows the notes spiral away - Clock: Reveals the music analysis mechanisms - Piano: The standard MIDI visualizer view

The menu allows for the compositor layers to be mixed and matched so you can explore and experiment. I'd recommend trying the "Feedback" and "CRT" overlays first.

I used Claude Code to generate all of the code, but it still took quite a bit of time to get it to look the way it does.

I wrote a post reflecting on my experience building it as well: https://decompiled.dev/blog/fractured-jukebox/