Hymnerophone
Hymnerophone [Gk. hymnos, song], clavicylinder invented in 1814 by P. Riffelsen of Copenhagen, a friction bar instr. with a series of lead forks controlled by a keyboard. They were brought into contact with brass discs attached to a rotating cylinder (176). Sachs, Curt. Reallexikon der Musikinstrumente. Berlin, 1913.