I have begun to build an idea for a sound installation based on the Theremin. It's far from complete but hopefully one day I'll have an opportunity to realize this piece. I'm still in the process of designing the piece and haven't yet begun to write the software that will generate it...(some day!) On this page are two screen shots of how the environment might look.
This 3D model was created by AC3D and then exported to VRML but I have since lost the original AC3D file -- sorry. However, if you have a VRML Browser plug-in installed, then you can download the WRL and fly around the installation.