Dibukkim - Az a Foygl un Goylem Tantsn. Swedish, Yiddish, folk metal or Klezmer metal if you will. Love it. Imagine the music at a Jewish Wedding as played by Metallica with violin and female vocals. V enjoyable!
You had me at folk metal :)
I'll be honest and say it does have the faint whiff of novelty about it, but at the same time, it's pretty entertaining, footstomping stuff if you're interested.