When you talk about a Japanese artist playing folk music, do you mean in the generic Anglo-American 'folk music' style (only sung in Japanese) or one that plays traditional Japanese music?
Sorry, I haven't heard Kan Mikami. I just wondered
EDIT:
Downloading this right now, so i'll be able to answer it for myself in a few mins.
Edit 2: Hmmm. I genuinely don't know what to make of it. It definitely sounds more 'Western' than I'd imagined - vocals aside, obviously.