Keyboard musical instrument learning aid

Keyboard musical instrument learning aid

  • CN 102,667,890 A
  • Filed: 12/02/2010
  • Published: 09/12/2012
  • Est. Priority Date: 12/03/2009
  • Status: Active Application
First Claim
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1. CAL equipment with keyboard instrument of a plurality of keys, it comprises:

  • The sensing apparatus related with keyboard operation ground is used for sensing with respect to the existence at the layout place object at interval of the key of said keyboard;

    With the operatively related locating device of said sensing apparatus, be used to locate said sensing apparatus, thereby be in the predetermined space with respect to said key layout at interval;

    AndWith the operatively related annunciator of said sensing apparatus, said annunciator is operationally reported when object is sensed the layout place that is present in said interval.

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