The first thing that happens when a culture comes to America--everybody wants to try the food. No Gypsy food.
Music? From where I sit, and what I've heard, the music people tell me is Gypsy sounds more like what a Western ear might like to think is Gypsy. That is, the vagabond romance of it all, not an authentic sound. I doubt we have anything in our repetoire that is anything but pastiche.
As for poetry--there is none. What we know of Gypsy language is the little that the Gypsies could not prevent our learning.
No art, other than Artful Dodging.
Amazing, is it not? There is no culture like this one--an utter nothing.