Comment 3 for bug 1547961

There is nothing against interfacing a light controller with Mixxx.
This could also be done by a custom skin.

Michael's mapping can be found here:
https://github.com/mixxxdj/mixxx/blob/8d191bf7ce2d62d24c6e0ffac4b2afd7359afa8a/res/controllers/Midi_for_light.midi.xml

http://mixxx.org/wiki/doku.php/midi_for_light

There is some work going on reading the playing track via OSC and display it in a light show:
http://www.mixxx.org/forums/viewtopic.php?f=6&t=8003&start=20