How many keys does the harmonica have? How to arrange them from low to high?

Some harmonica timbres are: major, minor and natural minor, each with 12 modes.

The harmonica in general major is: (pitch from low to high) e? ,? f？ ,? F#？ ,? g？ ,? G#？ ,? Answer? ,? A#？ ,? b？ ,? c？ ,? C#？ ，D？ ,? D#？ ,? *** 12 tone.

Harmonicas in minor mode are: (from low to high) Em? ,? Fm？ ,? F#m？ ,? General? ,? G#m？ ,? Me? ,? A#m？ ,? Bm？ ,? Cm？ ,? C#m？ ，Dm？ ,? D#m？ ,? *** 12 tone.

Extended data:

Introduction of polyphonic harmonica scales;

1. The arrangement of reeds and scales of stress harmonica is the same as that of polyphonic harmonica. The difference is that the pitches of the two reeds of the same sound differ by an octave. Full timbre, rich and beautiful, very beautiful, no vibration effect. Suitable for playing ancient folk music and Irish music.

2, alto harmonica, alto harmonica is similar to polyphonic harmonica, its timbre is eight degrees lower than treble harmonica (polyphonic harmonica), and it is often used as accompaniment and expression of melody with heavy timbre in big ensemble. The alto harmonica is a major member of the harmonica family. It can not only ensemble music, but also express feelings like a solo instrument.

Baidu encyclopedia-harmonica