I first encountered this tune on this website:
https://folkmusicnotes.wordpress.com/
It is (was) played by the Whirley Band in Oxford on May morning , and most of the videos save for this one involve Andy Letcher. :
Found out via a English pal Peter Kanssen that it is a branle de Bourgogne by Jaques Moderne which has been adapted or morphed.
Anyway I recorded a version tonight and am posting it in the hope that someone else might like it , learn it, and wish to play it.