If you read about John Lennon’s songwriting methods, you realize he got ideas from everywhere. For what became his least favorite Beatles song, John used a line from an Elvis hit as a jumping-off-point on “Run For Your Life.”
In the Fab Four’s psychedelic days, John said he used a drawing his son Julian wrote as the inspiration for “Lucy in the Sky With Diamonds.” And on his Sgt. Pepper masterpiece “A Day in the Life,” the song started just as John described. (He “read the news today, oh boy.”)
Starting in 1968, you hear the influence of Yoko Ono on his Beatles work. Whether it’s John’s turn toward experimental music or the lyrics to “Yer Blues,” it’s clear Yoko’s input had affected his writing.
It wasn’t just conscious songwriting efforts. Even relaxing on a couch while listening to Yoko play classical piano could inspire a song. And that very thing happened with this Abbey Road track.