The foundational blues structure: 12 bars following a I-I-I-I-IV-IV-I-I-V-IV-I-V pattern. Basis for rock'n'roll.
John Lennon uses the 12-bar blues song-form on 14% of his sole-written songs (11 of 79) – roughly 4.1× the rate at which the other Beatles do (3% average).
Song count per year
% of each member's catalogue with this tag (by writing credit)
Solo and outro are classic 12-bar blues
both instrumental breaks are twelve-bar frames
Guitar solo is 12-bar form
Verse follows blues progression in B
Verse uses 12-bar AAB
Blues-influenced verse harmony
I, IV, V harmony
I-IV-V vamp in F
Updated
Book
The Beatles: Complete Scores
Hal Leonard
Sheet music
Musicnotes – Beatles Piano/Vocal/Guitar
Musicnotes
Book
All the Songs
Margotin & Guesdon
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