This application is intended for live performance, so it uses a few keyboard controls to control the application state. These controls aren't intuitive, so you'll want to read/remap them in the gear-menu. If you're unclear on what live-looping is, or how to use this application specifically, check out the help menu (the big question-mark button) for a brief rundown.

Also note that this application depends on the Web MIDI API, which, AFAIK, is only available in recent versions of Google Chrome. Some features should work in other browsers, such as testing the synthesizers and using microphone input, but if you want the intended experience, you'll need to use Chrome.

Anyways, I hope you alls have fun with this. It was built with Wad.js, a Web Audio framework that I wrote. Check it out on github: https://github.com/rserota/wad.