I wanted to build a music creation tool that is easy to use, accessible and free. Zupiter is a synthesizer and step-sequencer that runs in a browser, meaning you don't even need to download and install any software to use it. Its interface is designed to be minimalistic and simple, so as not to put off beginners.

The sharing feature gives you the ability to instantly put your work online. My hope is that this will enable sharing of creative ideas and encourage cooperation between people, producing a positive feedback loop.

CLI based audio visualizer.

Command line visualizer. Supports mpd, with experimental support for alsa and pulseaudio.

Mopidy is an extensible music server written in Python.

Mopidy plays music from local disk, Spotify, SoundCloud, Google Play Music, and more. You edit the playlist from any phone, tablet, or computer using a range of MPD and web clients.