So that's two votes for Lewes as the most folk-friendly zone in South England and in the absence of any other responses to my question, Lewes wins.

The Lewes clubs are excellent. I visit them when I can, which isn't often owing to other musical commitments. When I do, I'm made to feel very welcome - in spite of the fact that I only occasionally play traditional music. I play a weird mix of ragtime, blues, jazz , '20s popular songs, music hall and anything that takes my fancy. And they put up with me nevertheless...

Long may they flourish!