Tips for Learning the A# / Bb Harmonic Minor Scale on Guitar
It is Bb natural minor with a raised 7th
Take Bb natural minor (Bb C Db Eb F Gb Ab) and raise the ♭7 (Ab) a half step to A. That single raised note — the leading tone — is the only difference from the natural minor, and it is what gives harmonic minor its dramatic pull back to the root.
Mind the augmented 2nd
Between the ♭6 (Gb) and the raised 7th (A) there is a three-fret jump — the augmented 2nd. That wider step-and-a-half is the signature exotic leap of harmonic minor; practise gliding across it cleanly on a single string.
Anchor the first box at fret 6
Start position 1 with the root Bb on the low E string at fret 6, then build the seven-note shape up from there.
The raised 7th unlocks a major V
Because the 7th is raised to a leading tone, the V chord in Bb minor becomes major — F7 — instead of minor. That strong F7 → Bbm resolution is the whole reason harmonic minor exists, and it is the backbone of minor-key classical and neoclassical progressions.
Where you will hear it
Harmonic minor drives neoclassical metal (Yngwie-style shred), flamenco and Spanish guitar, Middle-Eastern-flavoured lines, and virtually all classical minor-key music. Target Bb, Db, and F to spell the Bb minor triad, and lean on A as the note that pulls you home.
About the Bb Harmonic Minor Scale
The Bb harmonic minor scale is seven notes — Bb, C, Db, Eb, F, Gb, A — the Bb natural minor scale with its 7th raised a half step, from Ab up to A. That raised 7th is a leading tone: it pulls strongly up to the root and turns the V chord into a major F7, giving minor keys their dramatic, resolved cadence. The raised note also opens a three-semitone gap — the augmented 2nd — between the ♭6 (Gb) and the 7th (A), the interval responsible for the exotic, classical, faintly Middle-Eastern colour of harmonic minor. On guitar the first box sits with the root on fret 6 on the low E string, and the scale works over Bb minor, Bbm(maj7), and an F7 dominant.
- 01Notes: Bb – C – Db – Eb – F – Gb – A
- 02Scale degrees: 1 – 2 – ♭3 – 4 – 5 – ♭6 – 7 (raised, major 7th)
- 03Built by raising the 7th of Bb natural minor (Ab → A)
- 04The augmented 2nd between the ♭6 (Gb) and 7 (A) gives its exotic sound
- 05The raised 7th is a leading tone — it makes the V chord a major F7
- 06First box anchored at fret 6 with the root on the low E string
- 07Heard in neoclassical metal, flamenco, and classical minor-key music
A# / Bb Harmonic Minor — note by note
Every harmonic minor scale uses the same seven-note formula — scale degrees 1, 2, ♭3, 4, 5, ♭6, and 7. It is the natural minor scale with the 7th raised a half step to a major 7th (leading tone), which creates the augmented 2nd between the ♭6 and 7 that gives harmonic minor its distinctive, exotic sound.
| Degree | Note | Role | Interval (from root) |
|---|---|---|---|
| 1 | A# / Bb | Root (tonic) | Unison (0 st) |
| 2 | C | Major second | +2 semitones |
| ♭3 | C# / Db | Minor third | +3 semitones |
| 4 | D# / Eb | Perfect fourth | +5 semitones |
| 5 | F | Perfect fifth | +7 semitones |
| ♭6 | F# / Gb | Minor sixth | +8 semitones |
| 7 | A | Major seventh (leading tone) | +11 semitones |