First heard this song in the early 70's and have had it running through my mind ever since. This is a sone that Pozo Seco recorded and they seemed to add that little something to it that never dies. I bumped my head the other day and let out a "mowich" and so hummed the song again.
Very much appreciate all your effort above to sort out the ünknown"lyrics.

This is a song that should be kept alive

John