Your choices are not entirely my taste, I prefer the livelier dance music, complete with its 11/16 etc rhythms!
Something like this?
You live in New England; have you come across Northern Harmony / Village Harmony? They are choirs based in Vermont, who do Macedonian, Georgian, Shape Note, American spiritual, and more.
I haven't heard of that group, but I think there are many similar ones in New England. Actually, the New England Folk Festival is coming up in ~10 days. I might head over there to see some of the Balkan bands...