Hohner Comet 40 C (C) - OCTAVE HARMONIC IN C

(This text is machine translated) Octave harmonics employ the same horizontal division as the channel openings of tremolo instruments and are used primarily in folk / country music. They all feature a curved banana shape and use Wiener Octave tuning, in which the upper and lower notes are tuned exactly one octave apart, resulting in a full and powerful sound.