I'm a bit more modern myself, but I'm closer to your idea, ockham, as I loved the idea of the intstruments playing themelves as in the source of inspiration, for one, and the idea of doing something a little funky with visuals similar to your movie (in my case, I'm looking to use light flashes for one thing like Close Encounters, and in another as a sort of motion based sound for a creature). Definitely very cool stuff, all of this...

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)