Introduction

The Gb Harmonic Minor Scale raises the 7th degree of the Gb Natural Minor scale by a half step, creating a leading tone and the characteristic augmented 2nd interval. Its notes are Gb - Ab - Bbb - Cb - Db - Ebb - F - Gb.

Enharmonic equivalent: G♭ is enharmonically equivalent to F♯. See F# Harmonic Minor Scale Scale.

Gb Harmonic Minor Scale Notes

Degree	Name	Note	Interval
1	Tonic	G♭	P1
2	Supertonic	A♭	M2
♭3	Mediant	B♭♭	m3
4	Subdominant	C♭	P4
5	Dominant	D♭	P5
♭6	Submediant	E♭♭	m6
7	Leading Tone	F	M7
8	Octave	G♭	P8

Key Signature

The Gb Harmonic Minor Scale uses the same key signature as Gb natural minor (its relative major, A Major) — 3 sharps (F♯, C♯, G♯). The raised 7th degree is written as accidentals, not in the signature.

F♯C♯G♯

Written as accidentals

G♭A♭B♭♭C♭D♭E♭♭F♮

Order of sharps

Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.

F♯C♯G♯D♯A♯E♯B♯

Mnemonic: Father Charles Goes Down And Ends Battle

Parallel and Relative Keys

Every harmonic minor scale has two close cousins. The parallel key shares the same root note but flips the mode (major ↔ minor). The relative key shares the exact same notes and key signature, but starts on a different tonic — three semitones up. Both relationships matter for songwriting: borrowing chords from the parallel key adds emotional color, and pivoting to the relative key is a smooth way to change the mood of a section without changing keys on paper.

Parallel key: Gb Major Scale — same root note (Gb), opposite mode. The third, sixth, and seventh degrees shift by a half-step. See also the Gb Major Chord.

Relative key: A Major Scale — same key signature, different tonic. Gb Harmonic Minor and A Major use the same seven notes; the difference is which note feels like “home.” See also the A Major Chord.

Diatonic Chords in the G♭ Harmonic Minor Scale

These are the triads built on each degree of the G♭ Harmonic Minor Scale:

i — G♭ Minor (minor)

Degree	Numeral	Chord	Quality
1	i	G♭ Minor	Minor
2	ii°	A♭ Diminished	Diminished
3	III+	B♭♭ Augmented	Augmented
4	iv	C♭ Minor	Minor
5	V	D♭ Major	Major
6	VI	E♭♭ Major	Major
7	vii°	F Diminished	Diminished

Gb Harmonic Minor Scale — Frequently Asked Questions

What notes are in the Gb Harmonic Minor Scale?

The Gb Harmonic Minor Scale contains: Gb Ab Bbb Cb Db Ebb F (plus the octave). It is the Gb Natural Minor scale with the 7th degree raised by one semitone (to F). This creates the characteristic augmented 2nd interval between the b6 and the raised 7th.

How does the Gb Harmonic Minor Scale differ from Gb Natural Minor?

The only difference is the 7th degree: Natural Minor uses b7, while Harmonic Minor raises it to a natural 7th (F). This raised 7th creates a stronger leading tone that resolves powerfully back to the tonic, and produces the characteristic augmented 2nd (3 semitones) between the b6 and raised 7th.

What is the augmented 2nd and why does it matter?

The augmented 2nd is the 3-semitone gap between the b6 and raised 7th of the harmonic minor scale. In Gb Harmonic Minor this falls between Ebb and F. This unusual interval gives the harmonic minor its exotic, dramatic character — it is common in flamenco, classical music, and Middle Eastern music.

Why is it called the harmonic minor scale?

It is called "harmonic" minor because the raised 7th allows the construction of a major V chord (dominant chord) in a minor key. In Gb Minor, the natural V chord would be minor (using b7), but with the raised 7th, V becomes a major chord with a strong tritone tension that resolves back to the i chord — the basis of harmonic progression in minor keys.

What is the fingering for the Gb Harmonic Minor Scale?

Right hand: 23412312. Left hand: 43213214. The harmonic minor uses the same fingering as the natural minor scale — the raised 7th does not change finger placement. Practice each hand separately at slow tempo before combining.

What music uses the Gb Harmonic Minor Scale?

Harmonic minor scales are used extensively in Classical music (Baroque through Romantic), flamenco, Arabic maqam music, Jewish klezmer, and metal. The Gb Harmonic Minor Scale gives a dramatic, almost exotic flavour to melodies and is common in the works of Bach, Beethoven, and Paganini.

Practice Tips

Compare Gb Natural Minor and Gb Harmonic Minor side by side — the only change is the raised 7th (F). Listen for how that one note transforms the character.
Feel the augmented 2nd between Ebb and F — this 3-semitone leap is the scale's signature sound. Practice just that interval as a two-note exercise.
Use the correct fingering (RH: 23412312) — the raised 7th does not change the fingering pattern.
Practice the V–i cadence in Gb: the raised 7th is what makes the dominant chord major, giving the resolution its power.
Listen to flamenco, klezmer, or Baroque violin for the harmonic minor sound — ear training is essential alongside technical practice.
Improvise over a Gb minor chord progression using harmonic minor — emphasise the raised 7th as a leading tone into the tonic.

Explore More

Harmonic Minor Scale in Other Keys

C C#Db D D#Eb E F F#G G#Ab A A#Bb B Cb

Chords in the Key of Gb

iGb Minor ii°Ab Diminished IIIA Major ivB Minor vDb Minor VID Major VIIE Major

Browse all Harmonic Minor Scales →All Gb Scales →Learn about minor scales →

Related Lessons

Keep going with the Harmonic Minor scale — these pages cover the underlying theory, the connected reference material, and the practice tools that work with this scale.

Theory

Reference

References & Further Reading

How this scale page is sourced & verified

The note names, intervals, fingering, and harmony on this page are drawn from the established body of Western music theory and verified against the conventions below — the same fundamentals taught in conservatories and music programs. We list categories of source material rather than individual titles, and reference the standards themselves rather than any single edition.

Standard music theory texts — Widely taught fundamentals of pitch, rhythm, and notation.
Western tonal harmony conventions — Established rules for chord construction, voice leading, and key relationships.
Interval and chord construction standards — The conventional spelling of intervals, triads, sevenths, and extensions.
Scale and mode theory — The common derivation of major, minor, pentatonic, blues, and modal scales.
Piano pedagogy and technique references — Long-standing practices for fingering, hand position, and practice.

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Gb Harmonic Minor Scale