You probably think that your taste in music is your own, borne of your free spirit and personal experience. Well, it isn’t. No, the people who tell you what you like to hear (or at least control what you have access to) are a motley collection of TV presenters, marketing execs, and general know-it-alls who you have never heard of, and who generally like it that way. Of course, they must be fairly good at knowing what you like, since you do like that new Coldplay single on your iPod. Don’t you? C’mon, listen to it again…