I would hate overhead music. Hate it. Last place I worked had music. First office, the manager put it on a kids station to keep from offensive to any customer. There was one song that sounded like gerbils were singing, played at least twice a day. Same with the chick who sits on the bleachers waiting for some guy to realize he doesn't want the popular girl. I changed offices, thankfully there was no speaker in this one, but then there was the manager war. Soon as the big manager stepped out of the building the other managers complained about bleeding ears and arguing about what station to put it on. Even then, no matter what, the old folks complained about the music. Switch to make them happy and the young families would complain. Switch to make them happy and the child-free yuppies would complain. And then there was the day that the normally somewhat acceptable to all groups station played some song, wish I knew which one, where three salesmen bypassed the managers to get the radio changed because it was about a blowjob.
No. I don't want singing gerbils, I don't want teen drama queens wondering why the boys don't see them, I don't want to deal with every other guest complaining about the choice of music, and I really don't want to be there when a little kid asks why the song is talking about going down.
Besides, the whole reason the last place paid for cable radio and dedicated so much time and energy to station choice is so that customers couldn't hear what was going on around them, especially tables not even 5 feet away. If we are supposed to be selling, how is interfering the guests' ability to hear going to help?