But still, I think the solution is brilliant and I can't wait to try it.

If you ask someone to turn it down, it can immediately come off as confrontational, even if you're being polite. With this solution, though, it's kind of hilarious because in one sense it's more confrontational, but the original music blaster would have to ask you to turn it down - but it's just their music.

I'm a pretty nonconfrontational person, but the one time I lost it was when this late middle aged woman kept chatting away on her cell phone in the quiet car of the LIRR despite other people previously telling her that she was in the quiet car (I believe my exact words were "Hey princess, what part of 'no cellphones' do you not understand" - there is a giant sign at the front of the car that says no cellphone use). But I don't think I'd ever do this in a public situation where the rules weren't so clearly spelled out.