Virtual air guitar

The "No Stairway" rule oughta still apply: students at the Helsinki University of Technology have created a way for air-guitar virtuosos to make music without taking a lesson:

Using a computer to monitor the hand movements of a "player", the system adds riffs and licks to match frantic mid-air finger work. By responding instantly to a wide variety of gestures it promises to turn even the least musically gifted air guitarist to a virtual fret board virtuoso.

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