Thanks for the quick reply.
I came to this one via the dance and Playford's tune.
We played the tune in a pub and had a discussion afterwards as to whether the B part should be repeated. I knew that, for the dance it is 16bars 10 times, but it was claimed that the song needed 2Bs. And I could only remember a fragment. Looks like the song is AB too.

A lot of dancers call tunes by the wrong name too. Cecil Sharp is responsible for a lot of it because he published his choice of Playford dances to the Playford tunes that took his fancy. So people might call the tune by the name of the dance he put to it.
It has been happening the other way round for centuries. When there is a good song people write dances to it so there are several different dances with the same name.

Which reminds me. Was there ever a song "Bonny Breast Knots"? There are several dances of that name, the 2 in the Community Dance Manuals have different tunes.

As a caller most barn dance tunes have the same name "32 bar jigs or reels, please" - but I'm learning.