P-32D

“Pianica” is Yamaha’s registered trademark and product name for the key harmonica, an instrument that emits sound when air causes metal plates (reeds) to vibrate in the same way as a harmonica.
Pianicas were incorporated into school education in the 1960s, and were generally sold together with cases to make it easy for children to carry them to and from school.
Now, professional musicians often use them onstage and in the studio.