On this day Paul McCartney brought a selection of tape loops into the studio. He had made the monaural loops at his London home using Brenell tape machines, and in the control room of Studio Three they were transferred onto four-track tape.
Meanwhile, George Harrison had arranged for his Moog synthesizer to be transported to EMI Studios, where it was set up in Room 43. A signal from the instrument could be routed into whichever studio The Beatles were working in.
A new instrument in 1969, The Beatles and the studio staff took great interest in the sounds it could produce. The first song to receive a Moog overdub was Because. Harrison played the part twice to complete the song.
The final overdub of the day was for The End. On this day it was given its first vocals, although more were added on 7 August. This second session for Because and The End took place in Studio Two from 6.30-10.45pm.