Im sorry to keep harpin on after all the fine comments,and the wise words from Malcolm.
I still come back to the Martin Simpson version which to me is Cajun in feeling and intended as such..I feel thatperforming the song as an Irish waltz may be very nice for a folk audiance,but perhaps not authentic.Knowing Martins work im sure the song origins will have been very well researched.Maybe everyone else is pulling the song in the wrong direction because it sounds more comfortable to us..