Not bad at all

Surprisingly cool.

If you like this i would definitely recommend Thicket which is similar but gives you much more control including the sounds and you control some amazing sounds that will loop and play back to you. There are cool videos of it if you want to check it out. Different modes and each mode is very different. Its like this apps big brother. (i recommend cathedral mode)

Wastelander3000 about Gravitarium Live - Music Visualizer +, v1.1