Wii conductor

Suppose you recorded an orchestra, carefully separating the instrument classes: brasses, strings, etc., and then used a Wii (together with a fairly nice sound system) to mix the streams using instrumented gloves as the control. You give the beat, and the sound streams run fast or slow according to your beat. Gesture at the image of the brass section for a little more brass, and that gets amplified in the mix. Stretch out a phrase... if there's a standardized gesture for it you could program it.

Pausing and restarting from some defined time points have to be integrated into the system somehow, and you need a set of different symphonies to play with, but it would seem possible that a Wii could be used for "Conductor Hero." It might not have the horsepower itself, and a bolt-on sound mixing processor might be a bit pricy--I don't have the intimate knowledge of the hardware needed to guess.

This is similar to, but a little more complex than, Wii Maestro, which I just learned about after googling to see if any was already doing this already. It doesn't seem to do any mixing, just speed and volume control, though that's quite a bit. Maybe the next release...