Busk

Lighting. verb. To improvise. Often used when referring to running lights on the fly, with nothing pre-programmed. "I've never seen/heard this band and don't know the set list, so I'm going to have to busk the lighting." The failed Tommy Tune musical, Busker Alley, might explain the origins of the term, but the show closed before I could see it.

For "Tips and Tricks" regarding busking with moving lights, see The Ultimate Punt Page and Busking with Submasters.

Also, to entertain in public for donations.