Hello again, Lisnaholic! Happy to see you again!
I believe Comus is well known band within whole Misic Banter comunity, nevertherless I was not able to spot it in this threat, specifically dedicated to them, as it refers to prog folk around world, not only out of English language. Besides, Comus actually IS foreign language band to me.
I heard Altan Urag's album once, maybe twice, yet I take them as a way better pioneers of Mongolian folk rock music than, in my opinion, over-hyped "The HU" band (still, I don't say I dislike them). The more Asian prog-folk in here, the better.
But European one is good, too. Below, self-titled album of
Ksi??yc (eng. "The Moon") band from Poland, released in 1996. In some way, it resembles Comus in terms of the atmosphere.