Here's one last nugget about "All My Loving" before I move on to "Don't Bother Me." On Wikipedia, it says: "John Lennon's rhythm guitar track uses quickly strummed triplets similar to 'Da Doo Ron Ron' by The Crystals, a song that was popular at the time" (the source of this statement is Ian MacDonald's widely revered book, Revolution in the Head). Well "Da Doo Ron Ron," produced by the Great though Disturbed Phil Spector, is a superb tune and very much merits a listen. Enjoy.
(If the video is removed, go here).