The ideal jammer. Attached to the back of the hand is a "jamstick" used to bend notes and add other expressive touches. Close to the thumbs are useful controls. 
Notes that are considered the same or <a href="//commons.wikimedia.org/w/index.php?title=Enharmonic&amp;action=edit&amp;redlink=1" class="new" title="Enharmonic (page does not exist)">enharmonic</a>, such as the G# and Ab, are different keys on this keyboard and can be tuned more accurately.
<a href="//commons.wikimedia.org/wiki/User:MusicScienceGuy" title="User:MusicScienceGuy">MusicScienceGuy</a>
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