I'm working on a bunch of small tools for musicians. I want to simplify complex musical concepts by giving visual feedback and minimal UI. All modular component

I'm working on a bunch of small tools for musicians. I want to simplify complex musical concepts by giving visual feedback and minimal UI. All modular components built with pure JavaScript. Here are some of my first results (free PWA): https://fretool.dev-zoo.net https://fretool.dev-zoo.net (Fretboard visualizer) https://atoy.dev-zoo.net https://atoy.dev-zoo.net (real time audio slowdown and looper) https://harptool.dev-zoo.net https://harptool.dev-zoo.net (Harmonica helper)