Riccardo Bonci has an impressive organ and he knows how to play it. He's fond of using his organ to cover the theme music to favorite old cartoons, including Inspector Gadget and He-Man and the Masters of the Universe.
On his YouTube channel, Bonci also covers many 70s-era anime themes, only a few of which I recognize (sorry, Alex hired me for my good looks, not my knowledge). These include Captain Harlock and Mazinger Z, the latter of which I remember vividly in its American version as Tranzor Z.
-via Geekologie