The final song to be recorded for Abbey Road was John Lennon’s Because. The song was inspired by Beethoven’s Moonlight Sonata and featured The Beatles' distinctive three-part vocal harmonies.
Yoko Ono was a classically trained pianist whose interests had moved towards the avant garde. One day in 1969, however, she played Beethoven’s Piano Sonata No. 14 in C-sharp minor, Op. 27, No. 2 — the Moonlight Sonata.