I have a version by the Journeymen, the 1960's, and Yorkshire Yankee is very close. This seems derived from an old viking myth, possibly from "words of the wise one" in Old Saxon. Chords are Myxolydian, I usually use D and C, only two chiords in the song. haunting quaity. I like it, but rarely do it.

best wishes, Bard Francis, Society for creative Anachronism, musicologist ancient and folk music, play it on Kithara or Lute.

Local folks can call me at 530-926-0311 in PM if they like this sort of music.