Technical of piano trainer

The utility model discloses a technical of piano trainer, including main body cover, upper cover, the main body cover bottom is provided with the supporting leg, the last the place ahead of main body cover sets up big button, it is provided with little exercise button to press the button the place ahead greatly, be provided with the button above the little exercise button, be provided with the dabber below the button, the spindle nestification has the spring, the dabber bottom is provided with the dynamics adjusting gear, main body cover the place ahead is provided with the hand -type unscrambler, the main body cover back upper place is provided with vocal ware, sound production ware next door is provided with the function button, the main body cover top is provided with the upper cover, the one end that last inner surface of the cover kept away from the stiff end is provided with the bracing piece. Beneficial effect lies in: can practise playing the piano from many aspects for the practitioner keeps exact ha