This is a MIDI written by video game composer Yousuke Yasui in 1999 titled “Que Cela Cela.”
I’m linking this mostly because of the amazing MIDI visualizations. First the PARALLAX SCROLLING OF MIDI CHANNELS happening in the first half because they’re apparently being rendered in 3D space, and then later the endless staircase of keyboards. Astounding.
(Source: http://www.youtube.com/)