I ended up watching all 7 minutes of that Emmet Otter Jug Band Christmas outtake. I remember it was a rather depressing story since Emmet loses the battle of the bands to the hooligans and their rock and roll (they are singing "I Shot the Sheriff" if I remember right - which is an injustice that anyone can win with that terrible song) and then goes back to being poor.

But that drum scene just kept going. I didn't even know what they were trying for by the end of it.