Doc Walsh and the Carolina Tarheels --> Bob Dylan ---> John Lennon and the Beatles
https://youtu.be/V8nLraecPRYLennon said of the song, "That's me in my Dylan period again. I am like a chameleon, influenced by whatever is going on. If Elvis can do it, I can do it. If the Everly Brothers can do it, me and Paul can. Same with Dylan." The song is an early example of John self-reflecting in his writing, which had begun with songs such as "I'm a Loser" in the summer of 1964. Lennon wrote the song at home, wanting another song for the film Help!.[1] The song "is just basically John doing Dylan", Paul McCartney confirmed.[2] The song is similar to a folkish strophic form and uses a Dylanesque acoustic guitar figure in compound duple time, chiefly acoustic accompaniment, no backing voices and light percussion from brushed snare, tambourine and maraca. A flute, however, replaces the harmonica that Dylan typically used.[3]
https://youtu.be/hUvcWXTIjcUhttps://youtu.be/QY8aPG-ZkkE 