How to Build Natural, Harmonic & Melodic Minor Scales

Understand the three minor scale forms — natural (Aeolian), harmonic (raised 7th), and melodic (raised 6th & 7th ascending) — and when to use each.

Three Minor Scales, Three Different Sounds

Unlike the major scale (one form), the minor scale has three variants. Each creates a different mood and serves different harmonic purposes. Understanding all three is essential for composers, improvisers, and theory students.

Natural Minor (Aeolian)

Pattern: W-H-W-W-H-W-W. This is the 'default' minor — the same notes as its relative major, but starting on the 6th degree. A natural minor = all white keys from A to A. Melancholic, introspective, the sound of folk ballads and minor-key pop.

Harmonic Minor

Same as natural minor but with the 7th note raised a half step. This creates an exotic-sounding augmented 2nd between the 6th and 7th degrees. Essential for classical music, metal riffs, and Middle Eastern scales.

Melodic Minor

Raise both the 6th and 7th degrees by a half step when ascending (creating a brighter, almost major sound), and revert to natural minor when descending. Essential for jazz improvisation and classical melody writing.