In This Guide
1 What Is the Harmonic Minor Scale?
The harmonic minor scale is a variation of the natural minor scale with one crucial difference: the seventh degree is raised by a half step. This single alteration transforms the scale's character dramatically, creating a tension-filled, exotic sound that has been essential to Western classical music for centuries and continues to define genres from neoclassical metal to flamenco and Middle Eastern-influenced guitar playing.
The natural minor scale has a flatted seventh degree, which means there is a whole step between the seventh note and the root above it. This whole step weakens the pull toward resolution because the seventh does not create a strong leading tone. The harmonic minor scale solves this problem by raising the seventh to create a half-step approach to the root, restoring the powerful sense of resolution found in major keys.
This raised seventh also creates an augmented second interval between the sixth and seventh degrees of the scale, which is the interval responsible for the scale's distinctive "exotic" or "classical" sound. This wide gap, equivalent to three half steps, gives the harmonic minor its immediately recognizable flavor that sets it apart from both the natural minor and the major scale.
Understanding the harmonic minor scale opens the door to a richer harmonic vocabulary. It explains why minor keys often feature a major V chord (dominant seventh) rather than the minor v chord that the natural minor scale would suggest. It connects to chord construction theory in ways that deepen your understanding of how harmony works in virtually all Western music.
2 The Harmonic Minor Formula and Intervals
The harmonic minor scale follows the interval formula: W-H-W-W-H-W+H-H (whole, half, whole, whole, half, augmented second, half). On guitar, this translates to 2-1-2-2-1-3-1 in frets. Compare this to the natural minor formula of W-H-W-W-H-W-W (2-1-2-2-1-2-2). The only difference is the last two intervals: where the natural minor has two whole steps, the harmonic minor has an augmented second followed by a half step.
In the key of A, the natural minor scale contains the notes A-B-C-D-E-F-G-A. The harmonic minor raises the G to G#, producing A-B-C-D-E-F-G#-A. That single sharp note transforms the scale from a smooth, flowing sound to one with a dramatic, angular character. The jump from F to G# is the augmented second that gives the scale its signature tension.
In terms of intervals from the root, the harmonic minor contains: root, major 2nd, minor 3rd, perfect 4th, perfect 5th, minor 6th, and major 7th. The combination of a minor 3rd (which makes it a minor scale) with a major 7th (which creates the strong leading tone) is what defines the harmonic minor's unique identity. No other common scale shares this exact combination.
A Harmonic Minor Scale - Single String (3rd/G String)
e|----------------------------------------------
B|----------------------------------------------
G|--2--4--5--7--9--10--13--14-------------------
D|----------------------------------------------
A|----------------------------------------------
E|----------------------------------------------
A B C D E F G# A
Intervals: R 2 b3 4 5 b6 7 R
Frets: 2 1 2 2 1 3 1
Compare Natural Minor:
G|--2--4--5--7--9--10--12--14---
A B C D E F G A (G natural, not G#)
The only difference: G becomes G# (fret 12 → fret 13)
The augmented second interval between the 6th and 7th degrees (F to G# in A harmonic minor) is a defining characteristic that you should learn to hear and recognize. Play these two notes repeatedly, ascending and descending, until the sound is burned into your ear. This interval is what listeners identify as the "Middle Eastern" or "classical" sound, and using it deliberately in your playing creates instant drama and tension.
Pro Tip
Practice the harmonic minor alongside the natural minor in the same key, switching between them mid-phrase. This trains your ear to hear exactly what the raised 7th does to the sound and helps you use the two scales interchangeably in your solos, which is how experienced players approach minor key improvisation.
3 Fretboard Patterns and Positions
Like the major and natural minor scales, the harmonic minor can be played in five positions across the fretboard using the CAGED system. However, the raised 7th degree shifts one note in each position compared to the natural minor patterns you may already know. If you have already learned the natural minor scale positions, adapting them for harmonic minor requires changing only one note per octave.
The most commonly used position for A harmonic minor is the open position, which takes advantage of the open A and E strings. Starting on the open A string, the scale ascends through B-C-D-E-F-G#-A across two octaves. The G# is the critical note to emphasize in your fingering. On the G string, it falls on fret 13 (or fret 1 in open position, which is actually A flat / G sharp enharmonically).
A Harmonic Minor - Position 1 (5th Fret / E Shape)
e|------------------5--6--8---
B|--------------5--6--9-------
G|----------5--6--9-----------
D|------5--7--9---------------
A|--5--7--8-------------------
E|--5--6--8-------------------
A B C D E F G# A B C D E F G# A
Root notes (A) on frets: 5th string/open, 6th string/5th fret
A Harmonic Minor - Position 2 (Open/12th Fret)
e|--0--1--4-----------------------
B|--1--4--------------------------
G|--1--2--4-----------------------
D|--2--4--------------------------
A|--0--2--3-----------------------
E|--0--1--4-----------------------
E F G# A B C D E F G# A B C D E F G#
Note: The G# on each string is the key difference
from the natural minor pattern.
When learning these patterns, mark the raised 7th degree mentally on each string. In A harmonic minor, every time you encounter a G natural in a natural minor pattern, shift it up one fret to G#. This approach leverages the natural minor patterns you already know rather than requiring you to memorize entirely new shapes. The physical shift is small but the sonic impact is dramatic.
Practice each position ascending and descending with a metronome, paying special attention to the augmented second interval (F to G# in A harmonic minor). This interval spans three frets on the same string, which is a wider stretch than any other interval in the scale. On some strings and positions, you may need to shift your hand position slightly to accommodate this stretch. Developing comfort with this interval is essential for fluent harmonic minor playing.
4 Chords Built from the Harmonic Minor Scale
Harmonizing the harmonic minor scale by stacking thirds produces a unique set of chords that differ significantly from both the major and natural minor harmonizations. The raised 7th degree ripples through the chord built on several scale degrees, creating some unexpected and useful chord qualities. Understanding these chords is essential for chord construction in minor keys.
The seven triads built from A harmonic minor are: Am (i), Bdim (ii°), Caug (III+), Dm (iv), E (V), F (VI), G#dim (vii°). The most important of these for practical music is the V chord becoming major instead of minor. In A minor, this means the E chord is E major (E-G#-B) rather than E minor (E-G-B). This is why you constantly see E or E7 in the key of A minor across all genres.
The dominant seventh chord built on the 5th degree (E7 in A harmonic minor) is the harmonic engine that drives minor key music. The E7 chord contains G#, the raised 7th of the scale, which resolves powerfully up to A, the tonic. This V7-to-i resolution is the strongest harmonic movement in minor keys and is the entire reason the harmonic minor scale exists. Composers raised the 7th specifically to create this dominant chord.
The augmented triad on the III degree (Caug in A harmonic minor) and the diminished triad on the vii degree (G#dim) are less commonly used in pop and rock contexts but appear frequently in classical, jazz, and neoclassical metal. The diminished seventh chord built on the raised 7th (G#dim7) is a particularly dramatic chord that resolves intensely to the tonic minor. Learning these chord relationships transforms your rhythm playing and songwriting in minor keys.
Pro Tip
The next time you play a chord progression in A minor, try replacing the Em (v) chord with E or E7 (V or V7). Listen to how much more strongly it pulls back to Am. This V7-to-i resolution is the harmonic minor in action, and it is used constantly in everything from Bach to Metallica. Understanding this gives you a powerful compositional tool.
5 Musical Applications and Genres
The harmonic minor scale is indispensable in classical guitar, where it has been used for centuries to create tension and resolution in minor keys. Bach, Mozart, and virtually every classical composer relied on the harmonic minor for minor key melodies and harmonies. If you play classical repertoire, you encounter this scale constantly. The ascending passages in many classical etudes are specifically designed to highlight the raised 7th's pull toward resolution.
Neoclassical metal has made the harmonic minor one of its signature sounds. Guitarists like Yngwie Malmsteen, Randy Rhoads, and Ritchie Blackmore use harmonic minor runs extensively, often played at high speed with sweep picking and alternate picking. The scale's angular, dramatic intervals translate perfectly to distorted electric guitar, creating an intensity that the natural minor and pentatonic scales cannot match.
In flamenco and Middle Eastern music, the augmented second interval between the 6th and 7th degrees is a core element of the sound. The Phrygian dominant scale, which is the 5th mode of harmonic minor, is the foundation of Spanish flamenco guitar. When you hear a guitarist playing what sounds like "Spanish" or "Middle Eastern" flavored music, they are almost certainly drawing from harmonic minor or one of its modes.
Jazz guitarists use the harmonic minor scale over dominant seventh chords resolving to minor chords (the V7-i movement discussed in the chord section). Playing A harmonic minor over an E7 chord headed to Am creates sophisticated voice-leading that sounds more harmonically aware than simply using A natural minor or A minor pentatonic. The jazz scales overview covers how this fits into the broader landscape of jazz improvisation. The scale also appears in rock, progressive metal, and film scoring wherever a dark, classical atmosphere is desired.
6 Practice Approaches and Sequences
Begin by learning the harmonic minor scale in A, the most common minor key on guitar, using the open position and the 5th-position pattern. Practice ascending and descending slowly with a metronome at 60 BPM, four notes per beat. Focus on clean, even tone and give extra attention to the augmented second interval, which will feel awkward under your fingers until you develop the muscle memory for the wider stretch.
Once the basic pattern is comfortable, practice in thirds (A-C, B-D, C-E, D-F, E-G#, F-A, G#-B). This sequence highlights the unique intervallic character of the harmonic minor because the third between the 6th and 8th degrees is a major third spanning the augmented second, which sounds particularly dramatic. Practicing in thirds also builds the fretboard awareness needed for chord-tone soloing in minor keys.
A Harmonic Minor - Practice Sequence in Thirds
e|-----------------------------------------
B|--------1---------1-----4---1-4---4------
G|----2-----2---2-----2---------2----------
D|--2---2-----2---2------------------------
A|-----------------------------------------
E|-----------------------------------------
A C B D C E D F E G# F A G#B A
Play ascending and descending.
Use alternate picking throughout.
Start at 60 BPM; increase by 5 BPM when clean.
Also practice the augmented 2nd interval in isolation:
B|--1--4--1--4--1--4-- (F to G# on B string)
F G# F G# F G# Hear the exotic sound!
A powerful practice method is to alternate between natural minor and harmonic minor within the same phrase. Play four bars using A natural minor, then four bars using A harmonic minor, over an Am backing track. The only note that changes is G versus G#, but notice how dramatically the mood shifts. This exercise builds the ability to switch between the two scales fluidly, which is how experienced players actually use harmonic minor in real musical contexts.
Finally, practice the harmonic minor over V7-i progressions. Set up a simple two-chord loop of E7 to Am and improvise using A harmonic minor. Focus on landing on G# when the E7 chord plays and resolving to A when the Am chord arrives. This trains your ear to associate the raised 7th with the dominant chord and develops the musical instinct to use harmonic minor in the right harmonic context rather than simply running the scale up and down. Combine this with techniques from the modes overview to expand your improvisational palette further.
Key Takeaways
- The harmonic minor scale is the natural minor with a raised 7th degree, creating a strong leading tone
- Its formula is W-H-W-W-H-W+H-H, producing a distinctive augmented second between the 6th and 7th degrees
- The raised 7th creates a major V chord in minor keys, enabling the powerful V7-to-i resolution
- Adapt your natural minor patterns by raising one note per octave; no entirely new shapes are needed
- The scale is essential for classical, neoclassical metal, flamenco, and jazz applications
- Practice alternating between natural minor and harmonic minor to develop fluid minor key improvisation