Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|
| Dm7 | 4 | 16.7% |
| Gm7 | 3 | 12.5% |
| Em7b5 | 3 | 12.5% |
| A7b9 | 3 | 12.5% |
| D7b9 | 2 | 8.3% |
| Db7 | 1 | 4.2% |
| C7sus | 1 | 4.2% |
| C7 | 1 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|
| Em7b5 -> A7b9 | Setup (Minor Key) | 3 |
| D7b9 -> Gm7 | Resolution (Minor) | 2 |
| A7b9 -> Dm7 | Resolution (Minor) | 1 |
| A7b9 -> Dm | Resolution (Minor) | 1 |
Harmonic Highlights:
- Consistent use of the minor iiø-V7-i (Em7b5-A7b9-Dm7) grounds the D minor tonality.
- Secondary dominant D7b9 to Gm7 (V7/iv) adds harmonic movement and temporary resolution.
- A striking Db7 to C7sus-C7b9 progression leads to Fmaj7, suggesting tritone substitution or chromatic dominant resolution.
- Skillful integration of the relative major (Fmaj7) provides a contrasting harmonic center.
Improvisation Focus: D Harmonic Minor scale and its related arpeggios.
Difficulty Rating: 4 (Advanced Intermediate) – The blend of minor ii-V-i, secondary dominants, and chromatic alterations requires precise scale choices.