The harmonica, also known as the french harp or mouth organ is very common in blues, country and rock music. The sound is produced by either blowing or sucking air through the holes of the instrument.

Diatonic harmonicas

  • Tuned in one tonelity (ex. E-major)
  • It often has 10 holes
  • Used in blues, country and rock music

Cromatic harmonicas

  • Plays all 12 tones of the octave (so you can use the same harmonica in all tonalities)
  • Has 8-16 holes
  • Used in jazz (and by Stevie Wonder)

Traditional blues harp from Lee Oskar


Diatonic harmonica, curbed
40 holes
Plastic comb
Made in Germany


Chromatic harmonica
12 holes
48 notes, 3 octave range, C-major
Made in Germany