Jack:

The Daft Jamie I gave Steve to do was actually a different ballad to the one you link above. "Our" Daft Jamie is the one shown HERE.
on the National Library of Scotland's Word On The Street website. Let's call that one Poor Daft Jamie just to differentiate the two.

As you'll see, there's no indication on Poor Daft Jamie's sheet what tune the lyrics' writer had in mind. I just gave the raw lyrics to Steve and left him to make up a tune that would fit them. Whether he did this from scratch or took inspiration from some existing traditional tune, I don't know.

Right, I'm off to read your piece now.