Super Locrian ♭♭7
Introduction
Super Locrian ♭♭7 is the seventh mode of the Harmonic Minor scale. It is even more dissonant than the standard Super Locrian from Melodic Minor due to its doubly flatted 7th — creating intense chromaticism ideal for advanced jazz and avant-garde harmony.
Structure
Formula: 1, ♭2, ♭3, ♭4, ♭5, ♭6, ♭♭7 (same as 6)
Interval formula: H – H – H – H – H – H – W
Example:
G♯ Super Locrian ♭♭7 (from A Harmonic Minor):
G♯ – A – B – C – D – E – F
Use Cases
- Jazz improvisation over altered chords
- Avant-garde and 20th-century classical
- Chromatic fusion runs
Diatonic Triads
| Degree | Chord Type | Example |
|---|---|---|
| I | Diminished | G♯dim |
| II | Major | A |
| iii | Major | B |
| iv | Minor | Cm |
| v | Diminished | Ddim |
| VI | Minor | Em |
| VII | Major | F |
Diatonic 7th Chords
| Degree | Chord Type | Example |
|---|---|---|
| I | Diminished 7 | G♯dim7 |
| II | Major 7 | Amaj7 |
| iii | Dominant 7 | B7 |
| iv | Minor 7 | Cm7 |
| v | Half-Diminished | Dm7♭5 |
| VI | Minor 7 | Em7 |
| VII | Major 7 | Fmaj7 |
Common Progressions
- I - III - v: G♯dim - B - Ddim
- I - iv - VI: G♯dim - Cm - Em
