That "special moment" Slick describes is similar to something I experienced when I went to an Eno installation about 10 years ago that had 8-10 CD boomboxes mounted to a wall playing random tracks. Visually it wasn't that interesting, but I really enjoyed what I heard the first time I visited. When I came back a week or so later, the randomized tracks sounded completely different to me, and the moment I had experienced before seemed lost.
Forrest