Music in rare languages
 

For whatever reason, I'm a fan of rare languages such as dialects and other languages that are very rarely represented in media.
So naturally, I'm looking for musicians that perform in rare languages. Any suggestions?
Here are some musicians I like a lot and the languages they sing or rap in.

Swiss German - Bligg, Möchtegang, Wurzel 5, Fratelli-B, C-Beat.

Romansh - Liricas Analas

Colognian Dialect- BeerBitches, Kasalla

Low German - De Fofftig Penns, De Schkandolmokers

Austrian Dialect - Track****taz, Seiler und Speer

Bavarian Dialect - Dicht & Ergreifend