Here's my copy of the two Burns tunes. They're really simple to learn and quite nice pieces. Mandatory for any Burns Night celebrations. Probably best to rewrite them. On Corn Rigs, I would strongly suggest dropping the second part of Part B (after the repeat). This gets quite complicated and even I can't play it - and it sounds fine with a simple repeat.
I'll post a revision, Thanks!
So remove everything shaded with gray in the attached file?