Violano-virtuoso (Topical Term)

New Grove dict. of mus. WWW site, June 27, 2011: under Violin-player, Automatic (coin-operated electrically operated violin with a perforated paper roll in a cabinet with a symmetrically-strung 44-note piano; the violin is placed horizontally; for each of the four strings there is a separate small celluloid disc "bow" and pitch is controlled by four rows of electro-magnetic "fingers." The electro-magnetic action also included variable-speed bowing and variable vibrato)