Retroflector XL
An example project in Scrap Musician XL, blue switch is play/pause.
Tracks a psytrance tune, uses a lot of XOR patching in the playlist to save wiring.
Weld to the ground to minimize lag.
Visit the main page of Scrap musician XL if you need an empty workspace, and a manual:
http://steamcommunity.com/sharedfiles/filedetails/?id=791747460
