Light board (ETCInc SmartFade), connected to an arduino, connected to a keyboard sustain pedal - allowing Josie to run light cues while playing guitar!
Huge thanks to je92rivas and fimion for walking me through the setup!
There was a super strange electrical glitch that would send a cue-go signal when you turned the theater worklights on/off. Not even on the same circuit! But it was fixed by running power from the other side of the building. 🤷🏻♀️