Found a site which converts graphics into sound. The following link is one of 13 variations on a theme: whitney music box var. 3 – harmonics of 48hz, reversed

John Whitney Sr was a pioneer in computer animation and computer-generated music. Try these links: official Whitney site; wikipedia

It might be interesting to try something similar, although the only reasonable way I know to do this would either be in Flash (too rusty at that) or python or similar, which would mean learning not just a graphical API but a sound API too. That’s all a bit of a murky area for me at the moment.