NOS - -he Hohner 255/48 Chrometta 12 Harmonica has smooth, rounded covers, large, accessible mouthpiece openings and a beautiful tone make this model ideal for both beginning harmonica players as well as advanced harmonica players.The Hohner 255/48 Chrometta 12 has a 4 octave chromatic range and is equipped with wind saving valves and a moisture proof comb. 12 holes, 48 reeds.The Hohner 255/48 Chrometta 12 is a chromatic harmonica designed to play every complete scale in any key. You can play major, minor, pentatonic, or blues scales all on one harmonica. Additionally, all accidental notes are available at any time for any situation.Each single hole contains four reeds; two natural notes and two chromatic notes. The reeds for the chromatic notes are enabled by pushing a slide button on the side of the harmonica. Most chromatics are solo tuned, which means each group of four single holes covers a complete octave.This design offers a wealth of new musical options to the player. Most commonly chromatic harmonicas are heard within the classical and jazz scenes, but often these harmonicas are used for blues, folk, rock and pop as well.