
I think the best way to understand this it to listen to "How Do You Do It?" which is the song that their producer Geore Martin wanted them to release as a single. This wasn't one of their originals (like "Love Me Do" was) it was a "professionally written" song and while it is actually catchier than "Love Me Do" (and did hit #1 for three weeks when Gerry and the Pacemakers released their version of it in 1963) it also has none of the excitement that The Beatles original does.
A very simple song based around three chords. Actually it's mostly based on two chords with the 3rd one coming in as a big "surprise" on the bridge. But simple doesn't necessarily mean bad. It has a pretty catchy melody and the simple 4 Note Riff on the harmonica by John Lennon manages to wedge itself into the memory of the listener as well.








