There was something Shambles said back there I wanted to comment on: "That should mean that as long as no one dances and (if we accept the guidance) the volume is low, that any live (or indeed recorded) music can be considered as incidental and as a result - exempt from the additional entertainment licensing permission............."

And the pount was "as long as no one dances" - it seems to me that if 20 people are standing around drinking beer or coffee, with the music as background, that's incidental music. Just because a couple of people over in the corner start stepping it out, that needn't alter that, unless everyone joins in, which isn't too likely. In any case, this is likely to be "spontanous" in every sense. (But best sit hard on anyone who has aspirations to be a caller for the pub - or wherever this is taking place.)

Then there's always the question of when the exemption for Morris dancers and other analogous forms of traditional dancing kicks in, and what they cover. A great deal, I would hope, definitely dancing from other traditions.

I don't know if is anything in the Guidance which tries to put specific limits on the relevant characteristics for saying that something is covered by that exemption as "similar". I can't see why, for example Bengali Dancers shouldn't qualify just as well, or Samba Bands. Or Irish set dances.