move to algorithmic systems, and here the performer might move a fader
that, to the audience, has absolutely no discernable effect on the sound.
what the hell is he doing up there, anyway? well, perhaps the fader
adjusted the probability of a random fluctuation in the beat offset of a
loop. sometimes it is just too complex to expect the audience to ever
understand. visual displays can help, program notes can help... but it is
hard to make this type of interface coherent to an audience - especially an
"inexperienced" (non-geek) audience.