In western music there are three different minor scales. These are the natural minor, the harmonic minor and the melodic minor. Each features a slightly different sequence of tones and semitones, as illustrated in the following examples, using A as the tonic.
A Natural Minor Scale
A Harmonic Minor - 7th note sharpened (called the LEADING NOTE):
A Melodic Minor - 6th and 7th notes sharpened when ascending and returned to natural when descending.
Of these three minor scales outlined here, the melodic minor is the most commonly used. The following table lists the 13 most commonly used minor scales.