Tenhi (meaning something like "wise old man")is a Finnish neofolk band founded in 1996. The sound is melancholic, minimalistic, dark, folk music, usually with acoustic guitars, bass and drums. Piano, violin and flute are used as well. The lyrics are in Finnish, which to me sounds beautifully poetic.
This music is unique, and makes you feel like you are in mystic, beautiful Finnish landscapes in the winter.