Half puzzle & half music, Auditorium involves particle manipulation to play a beautiful ambient instrument.
Doze off while listening to deep, gentle voices of reassurance over binaural tones and holophonic sound.
Listen to pzizz
This creates an in-game harmony so that visual and auditory components are not two experiences, but one.
For those of you who prefer Winamp over iTunes, you can still trip on the bundled and plug-in visualizers.