The harmonic minor scale is defined as which feature?

• A. A minor scale with a raised 7th scale degree
• B. A minor scale with a raised 6th scale degree
• C. The natural minor scale
• D. The major scale

Answer: (A)

Raising the seventh scale degree of a minor scale defines the harmonic minor. This single alteration creates a leading tone that strongly pulls the harmony to the tonic, giving the dominant chord a brighter, more forceful resolution to i. The raised seventh also creates the distinctive augmented second interval between the sixth and seventh degrees, which is a hallmark of the sound. The other options point to different scales: raising the sixth degree relates to the melodic minor’s ascent, the natural minor has no alterations, and the major scale is a completely different scale type.