The plan so far.
project onto a sphere, use contact mics to measure movements and vibrations in the room, what will be great for this is if the room is quite noisy this will set up the natural heartbeat or breathing of the piece, even with no one in the room, it will have some sort of life as it listens to the world that contains it.
I have often looked at Arduino kits and the possibilities of what can be achieved with them. It will be great to incorporate them in my project, an essential skill to have if I want to step beyond the computer. A little reading suggests I should easily be able to hook up multiple contact mics and do something useful with the data.