/cgl/ - Cosplay & EGL

I’m planning on bringing a musical instrument to the next con I go to. What music do you think people want to hear in the hall of an anime con? Apologies for repeating this question on this board every few months, but every time I’ve asked, I’ve always gotten good ideas from you gulls, and I’m always looking for more song ideas.
On a related note, any advice on how to lug around a heavy prop all day during a con? I’ve had chronic back problems for a few years now, and I can only operate the aforementioned instrument for about two hours before I give out. I’d like to be able to perform for longer if possible.