This is a track I created with JavaScript in my talk at Github for SF Node Meetup. It was titled Creating Electronic Dance Music with JavaScript. Its made with my node module Scribbletune along with Ableton Live.

And here's the video of this talk:
https://www.youtube.com/watch?v=iwuZzp_ZnLo

Sfnode - 01052017 created live with Scribbletune

Scribbletune is a JavaScript/Node.js module that lets you compose music with JavaScript String and Array methods. It works in the browser (with Tone.js) and also in the terminal to export MIDI files (with jsmidgen). Lastly, it helps you create Max for Live devices too!