Haptic piano teaching system zaps fingers

Who needs a piano teacher when you've got a vibrating finger system that tells you which keys to press and when? Concert Hands plugs into a PC. Special software controls haptic signals to the fingers, which are delivered through what looks like a science fiction torture device. The user's wrists are lashed to a sliding bar, which is also computer-controlled, and are maneuvered by the system to the right position. The only thing this learning tool is missing are violent electric shocks to punish mistakes.