Patent ID: 8901405

Claim:
A piano training device, comprising: a plurality of electroluminescent light sources; a keyboard having a plurality of keys, each key of the plurality of keys being associated with a particular note and having an upper surface strikeable for playing the particular note, the upper surface having a first portion oriented toward a player of the piano training device when the piano training device is used by the player and a second portion oriented away from the player of the piano training device when the piano training device is used by the player, each key of the plurality of keys having an associated electroluminescent light source of the plurality of electroluminescent light sources, wherein: each electroluminescent light source of the plurality of electroluminescent light sources is operative to illuminate at least the second portion of its respective key with at least three different colors in response to at least three different signals; and a controller coupled to the keyboard and configured to provide respective signals to each of the electroluminescent light sources of the plurality of keys, the controller being further configured to alter an operative color for each of the electroluminescent light sources of the plurality of keys selected color theme provided to the controller, the selected color theme being from a set of pre-stored color theme variations, being modifiable, and programmatically modifiable color theme provided to the controller, the color theme associating at least three events each with a different respective color from at least three colors, wherein: the operative color for each of the electroluminescent light sources of the plurality of electroluminescent light sources is alterable by the controller to be any of the at least three colors based at least in part on the color theme and a current state of a musical score; and the controller is able to cause each electroluminescent light source of the plurality of electroluminescent light sources to be illuminated in each color of the at least three colors such that, for each event of the at least three events, the electroluminescent light source is illuminated in a color associated with the event by the color theme.