Awarded in 1998 to Youjiro Ozawa, this patent shows another solution to the problem of the beginner not being able to see which hole of the harmonica he or she is playing at any given time. Along the back of the harmonica are written the names of the notes, with their characters reversed. Attached to the harmonica is a mirror, enabling the player to see which notes correspond to their mouth position.
Ozawa was awarded Japanese Patent 11249545 the following year for a slightly more advanced version of this idea:
In this version, a chart is placed above the harmonica, with the characters for the notes displayed in reverse on the rear of it. The player's nose is directly above the note being played, so the player looks in the mirror to see which character is indicated by his or her nose.
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