I was out for a meal last night with some friends I hadn't seen for ages and we could hardly talk because of the loud music. We asked a couple of times for it to be turned down and saw a couple at another table doing the same, but within a few minutes it was turned back up again.
Most of the staff on duty were quite young -possibly students working part time - and seemed to be playing this music for their own enjoyment.
AIBU to think that staff are there to work and paying customers are there to enjoy themselves and do not want to listen to loud head banging studenty music in restaurants.