Yamaha’s Tenori

Yamaha has a new thing out, called the Tenori

Media artist Toshio Iwai and Yamaha have collaborated to design a new digital musical instrument for the 21st century, TENORI-ON. A 16×16 matrix of LED switches allows everyone to play music intuitively, creating a “visible music” interface.

Check out a video of it

Create Digital Music also has an article about it.