Concert Hands -- The Machine That Teaches You to Play the Piano...
(YouTube Link) Concert Hands is a gadget desi... ...is a gadget designed to replace traditional piano instruction by controlling the user's hand and finger movemen... ...s wrists lay gently on the wrist pilots. When the music begins the wrists pilots guide your hands across...
https://www.neatorama.com/2009/08/19/25739/
