Dorian ♯4
Introduction
Dorian ♯4 is the fourth mode of the Harmonic Minor scale. It modifies the Dorian sound by sharpening the 4th, adding unexpected brightness to a minor flavor.
Structure
Formula: 1, 2, ♭3, ♯4, 5, 6, ♭7
Interval formula: W – H – WH – H – W – H – W
Example:
D Dorian ♯4 (from A Harmonic Minor):
D – E – F – G♯ – A – B – C
Use Cases
- Jazz improvisation
- Modern film scoring
- Modal modulation and reharmonization
Diatonic Triads
| Degree | Chord Type | Example |
|---|---|---|
| i | Minor | Dm |
| II | Major | E |
| iii° | Diminished | Fdim |
| IV+ | Augmented | G♯+ |
| v | Minor | Am |
| VI | Major | B |
| VII | Minor | Cm |
Diatonic 7th Chords
| Degree | Chord Type | Example |
|---|---|---|
| i | Minor 7 | Dm7 |
| II | Dominant 7 | E7 |
| iii° | Half-Diminished | Fm7♭5 |
| IV+ | Major 7♯5 | G♯maj7♯5 |
| v | Minor 7 | Am7 |
| VI | Major 7 | Bmaj7 |
| VII | Minor 7 | Cm7 |
Common Progressions
- i - II - v: Dm - E - Am
- i - IV+ - VII: Dm - G♯+ - Cm
