I would hate it. I love a lot of music, but none of that music is what a Target store would probably play... which I'm guessing is modern pop music. Can't stand the stuff. I'd likely pull a Van Gogh. And I don't have the ability to tune out sounds that bother me, so it would be hell for me if it was music I hated.
I don't think it would go over well with the TMs here. A few years ago, they tried playing music on the speakers before the store opened because they noticed a bunch of Flow TMs had their phones on them to play their own music. People would take turns plugging in their phones and picking playlists. But nobody could agree on one kind of music and there were too many complaints about it so they went back to letting us just have our phones on us.