John Lennon's third take of "It's Not Too Bad" (the original title of "Strawberry Fields Forever") is the first instance of what would ultimately evolve into the chorus. But at this early point, it merely consists of a chord progression - no lyrics or melody. That progression features similarities to the chord progression Lennon used a year previously in "In My Life". The graphic below illustrates these similarities. (Click to enlarge.)
Formal structure of "In My Life"
Intro (trans.) 0:00-0:09*
Verse 1 0:09-0:28
Middle 8 0:28-0:46
Verse 2 0:51-1:10
Middle 8 1:10-1:28
Middle 8 1:47-2:05
Coda (m8, trans.) 2:10-2:25
Comments: Transition is intro halved.
Solo replaces a verse.
"In My Life" is the second Beatles recording to date to use transitional musical material in the introduction and coda - the first being  "Day Tripper". Both of these songs use this transitional lick (in "Day Tripper" it's the famous opening guitar riff, in "In My Life" it's the opening piano motive) cohesively, gluing together the sections of the song.
This blog is a workshop for developing my analyses of The Beatles' music.