each of the 48 dots moves in a circle on a 3 minute cycle. at the end of 3 minutes, the outermost dot will have moved around the circle once (this dot represents the 1st harmonic or fundamental). the next dot will have moved around the circle twice (representing the 2nd harmonic), & so on. each dot triggers a note when it passes the zero degree line, so that the pattern causes chords, ascending & descending runs & melodies to be heard.
The idea comes from the motion graphics John Whitney described in his book, Digital Harmony. Is it too far-fetched to imagine something like this paired with some Bach or Mozart? It could be more of a modal visualization (a la The Shape of Song), but would be all varieties of awesome.
Update: Yeah, maybe a little far-fetched.