It’s amazing how different something can sound with a tweaking a few musical intervals:
I’m not sure it is technically correct – the creator claims not to know musical theory and to reach the result just by experimentation. I’ve tried a similar exercise myself on short snippets of recognisable music and the general finding holds good – shifting the notes of a song into a different mode, altering the intervallic relationships between them while preserving the basic pattern can produce radical changes and it isn’t entirely unknown as a serious composition technique, especially when the original source is some public domain work like a folk tune.
Even if you don’t dig music theory, this will probably make you smile if you’ve ever encountered the cultural phenomenon that is Star Wars.