I Should Have Known Better (original stereo studio mix)

Because of the rushed atmosphere of this day, and because they held stereo mixing in such low regard, they didn't take the time to graft in the third measure of the introduction into the fourth measure. So the stereo mix most generally heard throughout the years included the gap in John's harmonica playing towards the end of the introduction. Not a major blemish by any means, but a noticeable difference nonetheless.

Another noticeable difference in this stereo mix is an edit in the rhythm track during the final bridge. This occurs just before the words “and when I ask you to be mine” and can be heard distinctly in the left channel. Incidentally, John's harmonica work and George's 12-string guitar strums in the bridges as well as the guitar solo is mostly heard in the right channel while the rhythm track (drums, acoustic guitars and bass) is heard mostly in the left channel. All of the vocals are centered in the mix.