At some point I realized that I was getting far away from my original experience, which had to do with the graceful gestures and motions which characterize music.
Oskar Fischinger's early black-and-white films (e.g. Studies 1 through 12) helped remind me what I was after: they have a quality of motion which seems very much like the way music moves.
So I did some experiments with flowing motion, which I called Oskarettes: