And what becomes clear time and again in this book is one essential truth: they didn't really intend to do any of it. As a young lad, John Lennon used to tell his mates they were going to the "toppermost of the poppermost," but what did that mean?
The arrangement starts with a two-count of Ringo Starr 's drums,  and his fills are an important part of the record throughout.  The electric instruments are mixed higher than before, especially McCartney's bass, adding to the sense of musical power that the record provides.   The lead vocal is sung by Lennon and McCartney, switching between unison and harmony.