Because was written by John Lennon for the 1969 album, Abbey Road. It is a ballad-like composition, in which each of the three vocalists (John, Paul & George) sings on three dubs or tracks, resulting in a chorus effect of nine male voices (as can be heard a cappella on the Love album and Anthology 3) The influence of the Beach Boys is evident from the vocal sound and the harmonies. George Martin plays electric harpsichord, to which Lennon contributes guitar (through a Leslie speaker). This song is also one of the few Beatles songs that used an "Moog" synthesizer as an instrument, played by George in an overdub. The origin of the song is curious: Lennon said that one night Yoko was playing Beethoven's "Moonlight Sonata" on the piano, and he asked her if she could play the chord sequence in reverse. He then wrote Because around those chords. Lennon said the lyrics were straightforward, with no hidden meanings or complex metaphors. In truth, they are uncomplicated, but you would not call them simple. Here they are in their entirety (with "ah's" omitted): "Because the world is round, it turns me on; Because the wind is high, it blows my mind; love is old, love is new, Love is all, love is you; Because the sky is blue, it makes me cry." The song was recorded mainly on August 1, 1969 with overdubs on August 4 & 5.