The classical roots of the Beatles

The Beatles need no introduction. Their music has continued to be influential over the years, as it was in their heyday. We were listening to Beethoven's Moonlight Sonata on the way to work and I remember reading about its influence on John Lennon's lovely ballad Because (on the wonderful Abbey Road). Did some digging and found out that the influence wasn't as straightforward as it was made out to be. Here's more from urban legends and beathoven (another interesting site analysing the music of the band).