Supplementary exercise device of keyboard instrument fingering and keyboard instrument

The utility model discloses a supplementary exercise device of keyboard instrument fingering and keyboard instrument, the device include controller and indicating device, and the output and the indicating device electricity of controller are connected, and indicating device includes the corresponding a plurality of indicators of key quantity and position with keyboard instrument, and every indicator has a plurality of array arrangement's illuminator, and the quantity of the illuminator that sets up in the same indicator is 5 at least. The utility model discloses an indicator adopts digital picture tube different with conventional indicator, but arranges a plurality of illuminators with the array mode to the finger of required button is expressed to a luminous scalar sum shape of illuminator, can play button instruction effect like digital picture tube function class, has consequently simplified the structure of indicator and has formed, is difficult for makeing mistakes during quick interpretation, has reduce