Just had the following train announcement: "Please note it is illegal to play pre-recorded music of popular music artists on trains or at stations because we do not hold a performing rights licence". Not simply because it annoys the crap out of everyone.
Unfortunately, most places, including my butcher, fork out for the PRS (aka thieving bastards) licence. The butcher, since you ask, has a radio playing, hence he needs the PRS licence.
(Phil) I don't see why musicians shouldn't be paid for any public performance though I don't know the scale of charges. Yes, I am in the MU. I would have thought you would have been more put out by the cost of a music licence from the local council, for which you receive bugger all except a piece of paper and a bill.