I’ve been exploring the new iTunes, and other than locking up when scanning for Album Art the first time I opened the application, I like it. The new visualizer is based off Magnetosphere. While the visualizer is running, press “?” to get a list of commands so you can customize the effects.
? = Toggle help screen
M = Change mode
P = Change palette
I = Display track info
C = Toggle auto-cycle (on by default)
F = Toggle freeze mode
N = Toggle nebula mode
L = Toggle camera lock
Hit “F” then play with the “m”odes. Very nice.