Music box "Yesterday"

A simple concept, beautiful music:

In our music box, you can see a metallic cylinder with raised surfaces (each of which corresponds to a note). When you turn the handle of the music box, the cylinder rotates, and every time one of the raised bumps hit the 'mini pianio' inside the box a beautiful note is played.

Cardboard box
Diameter: 6 cm - Height: 4 cm