Hold it tight, press it and make a sound! It's a new kind of instrument! You can also enjoy a simple performance with the coloring that supports the special score.
Since the scales are divided by color, it is a new kind of musical instrument playground that is visually pleasing and easy to understand.
It can also be used to train your fingertips.
It produces sound, which can increase motivation.
It is also a training for discrimination of color and sound.