Interesting stuff Malcolm (my apologies for not spelling your name correctly in my first post)

I've just looked up Kennedy and the song tune given there for Jowan Bon seems to be the one used for the Floral Dance tune. And although similar I would say the tune used for the Furry dance in Helston does differ. I think it would be difficult to dance the steps to the 'Floral Dance' tune.
The tune in Kennedy is also shown in Gundry's book together with the words of a song John the Bon, seemingly transcribed from a recording by Kennedy of the Skinners Bottom Glee Singers in Redruth.

John