I don't think there's any evidence that it's folk music as such that's under threat. And we shouldn't be suggesting there should be any special exemptions for us - pub piano singalongs or jazz night are in the same boat as we are. It'd be helpful to have information about any other type of informal or semi-formal live music, in pubs or elsewhere, being shut down posted here as well.

(I suggest the discussion about the ins and outs is best done in another thread, such as UK catters be useful TODAY - that way this thread here serves as a handy collection of actual cases, which is what politicians and such always say they like to have when they are lobbied over an issue of principle.)