Chromatic harp

Chromatic harp (Fr.: harpe chromatique; Ger.: chromatische Harfe), harp having a string for each semitone. This may be accomplished by providing several rows of parallel strings, as is the case with the *double harp of Mersenne, etc., by a single row of equidistant strings (18 to 19th c.), or by 2 rows of crossing strings. Jean-Henri Pape of Paris took out a patent on May 17, 1845, for a chromatic harp designed to eliminate pedals. It had 2 rows of strings crossing at half their length, one row…