Remember even when it's been passed it doesn't take effect immediately. The situation so far as John Barden's Friuday sessions will be unchanged for the time being - ie, they are probably in breach of the law, big deal.

So far as what "dancing of a similar nature" will actually mean if it ever gets to court, we just don't know. After all, if moving you reet rhythmically in time to the music counts as dancing, as has been asserted by councils trying to clamp down on music, and the players are stomping their feet as they play, which most of us do anyway, and the music they are playing is simlar to thatsued by Morris Dancers and such, all that could arguably add up to "dancing of a similar nature".