The song looks like the one in O'Lochlainn's Irish Street Ballads as A New Song On Granuaile.

The tune has been posted I think in a thread called granuaile (type this in the Filter box, set the Age drop-down to All and press the Refresh button to see that thread).

I don't know if the words have been posted; if not I'll put them up later if noone comes back with them.

Mick