Abstract: Harmonicas with the blow reeds forming a repeating pentatonic scale and the draw reeds forming a repeating pentatonic scale to facilitate ease of playability and musicality when playing pentatonic scales.

Abstract: Abstract: Harmonicas providing more notes and increased playability and musicality when playing blues scales. Disclosed harmonicas also provide functional minor scales.

Abstract: Harmonica with a blues scale based on the minor pentatonic scale, which is formed from the pentatonic scale in the minor key by adding the diminished fifth, comprising at least 10 combs, which are tuned to an arrangement of notes of the blues scale with a multi-octave range, and the comb assignment of the blow and draw channels is determined by a sound arrangement of the scale-specific notes of the minor blues scale, for which purpose the three adjacent combs of at least one octave are tuned to the blow notes (1), (4), (5) and to the draw notes (3b), (5b), (7b).