Jonathan Miller nailed the big point here- the Beatles' rather bizarre 4-part vocal harmonies are critical to the whole thing. I say bizarre, because often if you listen to what's going on, it seems like it really shouldn't work, but somehow it does. Compared to say, playing a Dragonforce track a Beatles song would tend to seem like EZmode, but add those vocals into the mix and things get a lot trickier. Interesting fact- singing and drumming at the same time makes your hair fall out. Known as the Collins Effect, postulated by prof B. Dickinson of Sanctuary University...