Studio Two, EMI Studios, London
The song which shared with "Day Tripper" the A-Side of the first single, "We Can Work It Out", was begun and virtually completed (but for a little overdubbing on October 29th) during two Abbey Road sessions this day, 2:30-6:30 and 7:00-11:45 pm. Once again, it displayed Lennon-McCartney's absolute mastery of the two-minute pop song and is another example of typically 1965 Beatles fare, excellent musicship allied with a new lyrical direction.
The basic track was captured in just two takes, onto which innumerable overdubs were applied, including the song's distinctive harmonium part played by John.
Source: The Complete Beatles Chronicle - Mark Lewisohn