While the natural minor and other major scale modes are built on tone and semitone intervals, the distance between the b6 and 7th degrees of the harmonic minor is a minor 3rd, which provides its ...
Harmonic minors use the relative major key signature and raise the seventh note of the scale. For example, in A harmonic minor there are no sharps or flats other than the raised seventh of G#.
The Hungarian Gypsy scale is the fourth mode of the double harmonic scale, and is a great choice over minor/major 7th chords. The Arabian scale is our final minor offering, although it is actually ...