I saw one today; specifically a
Roland V-Accordian. I was at the
Celtic Heritage Festival. Coolest thing ever... for... accordian players.
I've drooled over the Roland V-Drums for years. They use virtual sound modeling--much like if you wanted to test a new airplane design without actually building it, you'd get a computer to mock up the physics. For the V-Drums, you could say, give me a seven-ply birch shell, 10" by 10", with a coated head, close-mic'd with an AKG or whatever, in a large room with concrete walls, and it would "model" that sound and spit it out. Same for V-Guitar, which has MIDI pickup that converts your guitar to a manipulable signal that can be tuned differently or "model" different amps, or layered instruments. And now... the same can be achieved...
for accordian players.