osc
A JavaScript Open Sound Control (OSC) library that works in Node.js and the browser.
webmidi
WEBMIDI.js makes it easy to talk to MIDI instruments from a browser or from Node.js. It simplifies the control of external or virtual MIDI instruments with functions such as playNote(), sendPitchBend(), sendControlChange(), etc. It also allows reacting to
nowplaying-node
Control AIMP, foobar2000, iTunes,... players and get track information.
playercast
Cast to media player and control playback remotely