Plane9 is a 3d visualizer where you never have to settle for just one view ever again. From the start you have over 150 predefined scenes to choose from. The scenes can be combined with one another to form a near endless supply of new views to experience.
The visualizer, including any scenes you create yourself, can be used either as a winamp plugin, a Windows Media Player plugin or sound sensitive screensaver that reacts to what your currently listning to, be it from spotify, iTunes or any another music player.
Check the YouTube video to see how it looks in motion