Clavicylinder

Clavicylinder (Ger.: Klavizylinder), an improved euphone invented by Ernst Friedrich Chladni in 1799 and given its definite form in 1814: a friction bar instr. in shape of a square piano, controlled by a keyboard; C-shaped metal bars of graduated lengths were attached horizontally to the rear of the keys and pressed, by motion of the key, against a wet glass cylinder that was rotated by a treadle worked by the right foot. Compass C0-f3, later G1–a3. See also: hymnerophone (115, 132, 178). Sort…