Sound makes funny shapes. We don't usually see it in real life but when you put together water and sand with speakers bumping at different frequencies, you'll start seeing spirals and kaleidoscopes and other wild objects. This new video by Nigel Stanford and directed by Shahir Daud features all those awesome cymatics in action.
That was a very cool video.
The finished sound is highly produced, so I am a bit skeptical about some of this though. For instance, I don't see how the plasma sphere at 2:58 is related to the sound at all and in fact, the behind the scenes info doesn't show anything about it.
I does make for a neat add-in, but it not sound related. I half expected a Jacob's Ladder too.