The Beatles continued working on their remake of Strawberry Fields Forever during this session, which began at 2.30pm and ended at 10pm.
They had re-recorded the backing track on the previous day, and now turned their attention to overdubs. The first task of the day, however, was to create a reduction mix, placing the various instruments onto the same track of the four-track tape.
The reduction mix was labelled take 25. Onto track two of the tape Paul McCartney then recorded a lead guitar part, and two Mellotron tape sounds were added towards the end of the song. These sounds were the 'swinging flutes' and 'piano riff' pieces that came with the instrument.
The song was then left until 15 December 1966, when more overdubs and mixes were created. The delay between sessions allowed George Martin to prepare the trumpet and cello score.