Mr Frodo, as I know you are a fan of Beatles' song structure, I must share with you one of my favorite Beatle links... that of musicologist Alan W. Pollack's analysis of Beatles songs. It is delightfully layed out, and has interesting tidbits for each song (in a language you will understand and appreciate). It is presented in a way I have not seen elsewhere, and I almost wish there was a book version of it.
The home page is at:
http://www.icce.rug.nl/~soundscapes/DAT ... s_on.shtml
Or just pick a song from the chronological list. Pick a song! Any song!
http://www.icce.rug.nl/~soundscapes/DAT ... ects.shtml
There is also an alphabetical list on the home page.
I have Ian MacDonald's Revolution in the Head, but his analysis seems a little opinionated, with regards to post Sgt. Pepper years. In numerous cases he describes things that he thinks didn't work well in the song, and meanwhile I am thinking "That was the best part of the song!!!"

Alan W. Pollack's analysis, on the other hand, seems unbiased.