Harmonic Minor Scales on Piano

The harmonic minor scale raises the seventh degree of the natural minor, creating a leading tone that pulls strongly toward the tonic. This single alteration produces the characteristic augmented second interval between the sixth and seventh degrees — an exotic, dramatic sound used extensively in classical harmony, flamenco, and Middle Eastern music.

Formula: W–H–W–W–H–WH–H (whole–half–whole–whole–half–whole+half–half)

Intervals: P1–M2–m3–P4–P5–m6–M7–P8

Scale degrees: 1–2–♭3–4–5–♭6–7

Sound: Dramatic, exotic, tense, classical

Also known as: Mohammedan scale (historical name, rarely used today)

Why the raised 7th matters: Without it, the natural minor has no leading tone — the seventh degree sits a whole step below the tonic and feels unresolved. Raising the 7th creates a half-step pull to the root, enabling the V–i cadence that defines minor-key harmony in classical music.