The harmonic minor scale is a type of minor scale used in Western classical music and many other genres. It is created by raising the seventh scale degree of the natural minor scale by a half step, which creates a leading tone to the tonic. This leading tone creates a stronger sense of resolution and tension, making the harmonic minor scale particularly useful in creating dramatic and expressive melodies.
The formula for the harmonic minor scale is:
1, 2, ♭3, 4, 5, ♭6, 7, 8
As you can see, the seventh scale degree is raised by a half step compared to the natural minor scale. For example, in A natural minor scale, the seventh note is G, but in A harmonic minor scale, the seventh note is G#.
The harmonic minor scale is commonly used in classical music, particularly in baroque, classical, and romantic periods, as well as in many forms of jazz and metal music.