The chord pattern to "Because" is derived from Beethoven's Piano Sonata No. 14 in C Sharp Minor. Yoko was playing the piece when John asked her to play it backward.
George Martin plays a Baldwin spinet harpsichord. George Harrison plays a Moog synthesiser. Ringo provided a guide for the vocalists on the high-hat, but it was not recorded and only appeared in the headsets. The equivalent of 9 vocalists appear, as there are 3 sets of 3-part vocals.
"I was lying on the sofa in our house, listening to Yoko play Beethoven's "Moonlight Sonata" on the piano. Suddenly, I said, "Can you play those chords backward?" She did, and I wrote "Because" around them. The song sounds like "Moonlight Sonata," too. The lyrics are clear, no bullshit, no imagery, no obscure references." - John Lennon, Playboy, 1980
- August 1, 1969 (rhythm track, first set of vocals)
- August 4, 1969 (second and third sets of vocals)
- August 5, 1969 (Moog synthesiser overdubs)
- August 12, 1969 (mixing)
- Elliot Smith (from the American Beauty soundtrack)