He mentioned: “[Sir Paul McCartney] supplied a lightness, an optimism, whereas I’d all the time go for the unhappiness, the discords, the bluesy notes.
“There was a interval once I thought I didn’t write melodies, that Paul wrote these and I simply wrote straight, shouting rock ‘n’ roll.
“But, in fact, once I consider a few of my very own songs—‘In My Life’, or a number of the early stuff, ‘This Boy’—I used to be writing melody with the most effective of them.”
The pair used this medium to speak lots of their emotions, concerning the world and points they have been going through.
But who wrote which songs?