After a best mate of mine introduced me to Fela Kuti’s works I’ve been real interested in hearing music from other cultures you don’t hear much stuff from. Doesn’t have to be traditional music styles (love it when genres and cultures fuse together, like Masayoshi Takanaka taking influence from Brazilian music), but I’d love to hear that as well!
If you’re into metal, here are a few bands renowned for mixing cultural music with heavy metal off the top of my head:
Norway - Ulver (They have possibly the most varied discography in all of music, but their first album is a mix of black metal and Norwegian folk music, and their second is entirely Norwegian folk music)
Brazil - Sepultura (From Arise to Roots they started incorporating a lot of Brazilian musical ideas)
Romania - Negura Bunget (They’re the only reason I know what a nai is)