Thanks, Jim, for posting those notes. Are they from an earlier vinyl version of 'The Muckle Sangs'? The CD version that I own has frustratingly little information about the actual recordings. I also presume that the notes were written by Hamish Henderson?

I still think that Bert Lloyd's version of 'Tam Lin' was, at least in part, based on one of these recordings (probably Betsy Johnston's?).