Lighter:
Will, your "Cuckoo's Nest No. 2" is beautifully played. A variant of it was in print by 1782. (My two cents: 18th Century musicians would have played it more slowly.)

Many thanks. I'd always assumed that the tune was played for dancing, e.g. Morris, and so set it at that tempo. It does lend itself to a much slower tempo - the sorts of tempos that I hear "The Blackbird" played at. If I recall, Dave Swarbricks' 1967 version from the "Rags, Reels and Airs" album was also at a much more moderate rate. Mmm..perhaps I ought to have a crack at version #3...