Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Em7b5 | 5 | 13.2% |
| A7b9 | 5 | 13.2% |
| Dm7 | 4 | 10.5% |
| Am7b5 | 3 | 7.9% |
| D7b9 | 3 | 7.9% |
| Gm7 | 3 | 7.9% |
| Gm7/F | 3 | 7.9% |
| Cm7 | 2 | 5.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Em7b5 -> A7b9 | Setup (Minor Key) | 5 |
| A7b9 -> Dm7 | Resolution (Minor) | 4 |
| Am7b5 -> D7b9 | Setup (Minor Key) | 3 |
| D7b9 -> Gm7 | Resolution (Minor) | 3 |
| A7b9 -> Dm7b5 | Resolution (Minor) | 1 |
| Dm7b5 -> G7b9 | Setup (Minor Key) | 1 |
| G7b9 -> Cm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Frequent tonicization of the dominant minor (Gm7) via its ii-V (Am7b5-D7b9), adding secondary dominant motion within the D minor key.
- The appearance of Em7 (not Em7b5) preceding the Am7b5-D7b9-Gm7 progression suggests temporary modal interchange from D Dorian or D Major, injecting a brighter harmonic color.
- Features a complex descending chain of iiø7 chords (Bm7b5 to Em7b5), creating distinctive chromatic bass movement before the tonic ii-V-i (Em7b5-A7b9-Dm7).
Improvisation Focus: D melodic minor scale (and its modes for respective chords).
Difficulty Rating: 4 (Advanced Intermediate) Requires proficiency in navigating varied minor ii-V-i cadences, understanding modal mixture, and adapting to non-diatonic harmonic shifts.