Jankó keyboard

English thumb|upright=1.7|right|250px|A Jankó keyboard Etymology Designed by Paul von Jankó, a Hungarian pianist and engineer, in 1882. Noun en music A kind of piano keyboard that, instead of one long row of keys, has an array of keys consisting of two interleaved manuals with three touch-points for every key lever, making six rows of keys. Each vertical column of three keys is a semitone away from the neighboring ones, which are in the alternate rows. en eponyms