기능

• 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.