The Tetrafol is a hand-held tangible electronic sound toy, created by Fol Chen. Circuits enclosed by a wooden tetrahedron detect orientation and motion-gestures to modify the playback of a collection of Fol Chen’s micro-compositions, allowing the user to explore sound through physical manipulation. The battery-powered device has its own internal speaker but can additionally be… Read More The Tetrafol – A Handheld Tetrahedral Sound Toy