"In My Life" (1965)
Lennon knew he had something special when he completed this introspective lyric, born out of a poem about his Liverpool childhood. Space had been left for a solo, but an electric guitar felt out of place on such a delicate track. He knew he wanted "something baroque sounding," but the actual instrument eluded him. Martin took it upon himself to deliver the desired result. "While they were having their tea break, I put down a baroque piano solo which John didn't hear until he came back. What I wanted was too intricate for me to do live, so I did it with a half-speed piano, then sped it up, and he liked it."