Paul McCartney: We were writing songs that were memorable because we had to remember them

Paul McCartney and Rick Rubin are joining forces for a six-part documentary series that will take a look at the ex-Beatles' rich career, and the first official trailer is out now (watch it below). In the trailer, the duo talks about how the bass guitar can control a band, and McCartney explains how the Beatles wrote their tunes - “we realized we were writing songs that were memorable, not because we wanted them to be memorable, because we had to remember them”. According to Deadline, the untitled project is the first time that the original masters have ever left Abbey Road Studios.