That's well cool. It's to do with water running through a clear tube and the speakers frequency and camera refresh rate all perfectly in sync.
You make it sound so easy.
I dare you to do it and film it
might not be water ?
Diamagnetism: Magnetism Science Project | Exploratorium Science Snacks
maybe a bit like this with 2 powerful magnets and inoised water
omg that is so kiorafantastic
looks soooo cool