Hey!
I think we should post the good non-english bands we know here~
By non-english i of course mean that there are NO ENGLISH lyrics (at least not to any larger extent).
I think music with languages you don't understand give you a larger focus on the sounds of it and can greatly broaden your perspective onto what music actually is when It's not messages you percept in the shape of words you can interpret.
I kind of cheat since i know basic japanese but here is my post!