Wow, that is stunning! To me, that song has a much clearer tie to what we in this generation think of as traditional Irish folk music. You can almost hear someone sitting by himself on a rocky crag, with no accompaniment but the crashing waves and echoes off the stones. Thank you so much. Are you especially into Irish music, or was that a passing find?
I looked up this one, which is an old favorite of mine. An homogenized version was popularized to some extent back in the late 60s by Joan Baez:
The Great Silkie of Sule Skerry
It's the legend of a mythological sea creature, the Great Silkie, creating a baby with an Irish maiden... with a tragic ending.