You have to go to Kingston to hear new music. But it's going to be 100mph schizo zig zag modern jiggy dancehall all night long. That's what they listen to now. There are some modern roots artists, but they don't play their records at the dance, and they rarely perform in Jamaica.
Honestly though, I don't think I'd go to a dance in Kingston if I were you. Or me. I wouldn't go to Jamaica at all, but that's just me.