Famous guitar riffs vol. 3

 Under the pressure of needing a new single for the Christmas market, John Lennon wrote much of the music, including the famous guitar hook, and most of the lyrics, while Paul McCartney helped with the verses.

According to music critic Ian MacDonald, the song "starts as a twelve-bar blues in E, which makes a feint at turning into a twelve-bar in the relative minor (i.e. the chorus) before doubling back to the expected B—another joke from a group which had clearly decided that wit was to be their new gimmick."


 
main guitar riff

source: wikipedia