Mysteriously, to divide musical scale into 7
is similar to regard numbers of collors of rainbow as 7.
SPECTRON series are whole new synthetic sound interface ever.
Controlling color corresponding to sound,
integrates visual and auditory senses, intuitive and synthetic key board.
The pitch of each key board sound is indicated by the color of light emitted from it. Player can make his own optical musical scale like "put favorite color ink on pallet"
Everybody even if doesn't have knowledge of existing musical scale can play brilliant "colorful" performance with SPECTRON.