Dan Brooks in the New York Times argues that since streaming music has made the same music available to everybody it's no longer possible to identify kindred spirits by the fact that they like the same as you do.
He says that in the old days "the bands you listened to conveyed not just the particular elements of culture you liked but also how much you cared about culture itself".
It's very well-argued. It's also wrong.
If there's one thing I've learned in the course of a life spent listening to music it's that liking the same music is no more an indicator of your likelihood of getting on with people than you both happening to have bought the same sweater.
I've met raging bores who like the same things I like. I've got bosom pals whose choice of music I wouldn't be paid to listen to. And I also strongly suspect that anyone who sets that much store on what music you listen to is the kind of person who knows the sub-genre of everything and the value of nothing.
It's not music that bonds people. It's the attitude to music.