Thanks for the link, ansel12. I remember when the Beatles came blasting onto the scene not long after the JFK assassination. Like many of that era, I thought most of their music of that time was just a lot of loud, abrasive noise. This one does strike me as different. Maybe I've mellowed in my dotage or perhaps this song is a cut above. The first comment in the YouTube link is interesting:
I know most of the obvious Beatles songs but this beats the lot! Glad I found it. As fossie32 says - some tremendous key changes in there.
So I take it this wasn't among their hit records?