Because (2:19)

“Because” is a ballad written by John Lennon (credited to Lennon/McCartney) and performed by The Beatles. It features a 3-part harmony vocal performance between Lennon, McCartney and George Harrison, overdubbed three times to make nine voices in all. The results of this have been compared in sound to The Beach Boys. It appeared on the 1969 album Abbey Road, and is the song that precedes the extended medley that formed side two of the original LP record.
“Because” by The Beatles was inspired by Beethoven’s “Moonlight Sonata” … BACKWARDS.

John Lennon tells the story of the origin of that song: 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.