This started life in the very early days of the Bastard English session, in the Half Moon in Oxford. In those days there was a List™ of tunes that would definitely be encountered, and the Winster Gallop was on that list. Paul Hartwell chose it, picked up his harmonica, and…realised he had the wrong harmonica. Now I can’t play it any other way.
By the way, that session’s on tomorrow, but it’s now in the Isis Farmhouse.