Okay, so I'm super sad that I didn't jump directly into this thread after hearing the WTN not too long after the episode went up. The thing is, I woke up the next morning absolutely convinced that I had a dream
that the Who's That Noisy was Bach's Goldberg Variations played on his actual own clavichord
or whatnot, but that I won
the Who's That Noisy because I had time-travelled back to 2008 shortly before the episode aired (wrong year!), with the foreknowledge of what the Who's That Noisy was going to be.
This is all a big irrelevant and roundabout way of saying that I was wrong, and found the Lego one so much more awesome.