HARMONICA PRACTICE IMPLEMENT

摘要

PROBLEM TO BE SOLVED: To provide a harmonica practice implement which enables a practice person to master a harmonica while checking the ways of moving the tongue by his or her own vision before producing sounds.

SOLUTION: A transparent board is provided with four vent holes at equal intervals at a pitch twice that of air holes for inhalation and blowout of the harmonica and the ventilation of the holes is controlled by the tongue.

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