The beginning sounds kind of like fetches of Dvorak's Symphony No. 9, From the New World, around the intro -- see https://youtu.be/O_tPb4JFgmw?t=81. The tune sounds so dark and in a minor key(?) I feel it may be classical. I know there are, of course, folk songs out there in minor keys, but this sounds like a weird one.

(PS, Joe -- to get the link to work, I had to download the song. The internal dropbox video player gives an error, but if I downloaded it, it worked mostly fine. And VLC wouldn't play the file [or rather, it would try and produce no sound] but Windows Media Player would).