Is there an off-the-shelf product I can plug a lamp into that will flash it to a predetermined tempo I can set and change?
That's one solution, thank you. I'd like to plug a torchiere floor lamp into something that looks like a power strip and have the light pulse at the beat per minute setting chosen. I keep thinking there's something out there already, I just can't think of it.variable tempo strobe
Yes. If only it had a digital display of BPM. Oh, so close...DJ light controller (https://www.guitarcenter.com/Elation/Light-Saver-2-Channel-Auto-Timer.gc)
The DJLC is closer for my needs. Thanks for the suggestion, though.