The G harmonic minor scale has 7 notes: G, A, Bb, C, D, Eb and F#. Its formula is 1 2 b3 4 5 b6 7 and its steps, in tones, are 1 – ½ – 1 – 1 – ½ – 1½ – ½.
The harmonic minor scale is the natural minor with a major seventh: this leading tone pulls strongly toward the tonic and creates an exotic interval (an augmented second) between degrees 6 and 7.
G harmonic minor
G A Bb C D Eb F# · 1 2 b3 4 5 b6 7
Colored dots: notes of the scale, the root is the darkest.