I looked at a forum for pub landlords/licensees recently [sorry i don't know waht its called, and i forgot to save it], and it mentioned on there that pubs pay £400 per month for Sky Sports TV, so the £20 a week music fee thing does not seem much compared to that.

I might have got the £400 a bit wrong, they might be proposing to increase it to £400, I'll try to find out.