There is a one-to-one mapping between the animation and the music, that is, the symbology on the video (amplitude, duration, frequency and melodic voice) corresponds exactly with the notes played on the synthesizer (no pesky overtones or timbre variations in the generated waveforms). Starting with either the audio or the video it is possible to reproduce the other precisely and unambiguously.

And yet, the emotional and intellectual response to the two is totally different. Two different parts of the brain process the same objective data and yield completely different subjective states.

Think about that.