Why Are Hit Songs 3 Minutes Long? A Musicologist Explains

Taylor Swift released a new version of "All Too Well" that clocks in at 10 minutes. That's rare as streaming has led to a decline in the length of songs to cater to shorter attention spans. Joe Bennett, a forensic musicologist and professor at the Berklee College of Music, joined LX News to talk just how rare a 10-minute track is these days.