Music clock with key and musical notes

This article will remind some of the little Musica table clock, but the differences between it and this clock with key and musical notes should not be underestimated.
First of all, it is a wall clock. It takes a moment to notice it when you return home or office. Maybe it's its lively design or maybe, much more simply, its size.
The musical notes present are five, and from the center they expand to the right.
On the left, however, a key partially covers the dial, just enough not to show the number nine.