Editorial: The science behind top 40 radio

Pop music can be hard to escape. You turn on the radio, you walk into a mall, it’s playing. As bad as it can be, it’s hard to deny. Even the music snobs in your life have probably danced to Iggy Azalea, or found themselves humming along to a One Direction song. Take, for example, Taylor Swift’s latest album, 1989. It sold more than a million copies in its first week. (I may or may not have been one of the million). [...]