It's really cool. :D Perhaps if each of the notes, in the chord, was done in a completely different sounding noise, you would be able to hear the distinctions between when one goes back up to the starting pitch and which ones are descending at what pitch..? (I kinda had the feeling i could, but... more
You may notice that the scale always seems to be going down, but not getting much lower. Its an auditory equivalent of an old-fashioned barber pole. But how is it possible in a sound pattern?