Pocopoco

“Pocopoco is a new musical interface that users can control by pushing, holding and turning - very intuitive and tactile actions. To create Pocopoco we developed original solenoid units with built-in sensors and assembled 16 of them in a box-shaped container to serve as a universal input/output device.
Through the use of their up and down movement we have created a new form of musical expression. The resulting device is a versatile interface whose physical movement is appealing to both performers and audiences.”

http://ideea.jp/index.php?p=pocopoco&lang=ja