When we look at the C harmonica and the C major scale, the missing notes in the first octave are the F and the A, in the third octave the B is missing.
These notes can be played by bending.
The blow- and drawbends add a large number of notes to those that can be found on a Richter tuned diatonic, however not all 12 notes that are used in western music can be played on the Richter diatonic by using bent notes.
The notes that are missing are, when we look at a C harmonica:
- The Eb in the first octave.
- The Eb, F# and Bb in the second octave.
- The C# and Ab in the third octave.
These notes can be played by using overblows and overdraws, giving a complete chromatic scale over three octaves.
|Chromatic scale - C Diatonic|