I could be a bit hasty, here. The song and the tune are here, at the Mudcat, in the DT, but I haven't seemed to find any sheet music or tabs for it.

I don't like to do this, but there are dulcimer tabs available, plus a few different formats at a Digitrad Mirror Site.

If I have overlooked something at the Mudcat, and if what info I have just posted is available here, then I apologise in advance. There's a whole sea of information here, and sometimes I lose my way around the site, as well. But I don't like to go outside it, if the info is here. So sorry again, if I've missed something.

But....if I could be so bold as to suggest.
Use your 'persona' to help you on figuring out the riff *BG*. I used to do it in that tuning years ago, and if I am not mistaken, Fairport did it in that tuning as well (I'm only going from memory, here), and as it's 2.45 in the morning, here, I don't think the neighbours would be too pleased if I started practising Fairport in the middle of the night!!!
They're all a bunch of old biddies, and oul fellas, and they already think I'm a bit strange.

But all this talk recently of Crazy Man Michael, and now, Mattie, has got me thinking about reviving a few of the old gems. Very few people play them 'out' these days, and I think it's about time some more people did.

Try DADGAD tuning, though, and listen to them doing it a few times, and I hope someone comes up with an easier solution for you before long (along with the tabs for CMM *BG*).

B.