Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7b5 | 6 | 16.2% |
| G7b9 | 5 | 13.5% |
| C6 | 3 | 8.1% |
| Bbm7 | 2 | 5.4% |
| Eb7 | 2 | 5.4% |
| Abmaj7 | 2 | 5.4% |
| Cm7 | 2 | 5.4% |
| Am7b5 | 2 | 5.4% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7b5 -> G7b9 | Setup (Minor Key) | 5 |
| Bbm7 -> Eb7 | Setup (Major Key) | 2 |
| Eb7 -> Abmaj7 | Resolution (Major) | 2 |
| G7b9 -> Cm7 | Resolution (Minor) | 2 |
| Gm7b5 -> C7b9 | Setup (Minor Key) | 2 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| Ab7 -> Dbmaj7 | Resolution (Major) | 1 |
| C7b9 -> Fm7 | Resolution (Minor) | 1 |
| C7b9 -> Fm6 | Resolution (Minor) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Frequent minor ii-V-i progressions (e.g., Dm7b5-G7b9-Cm7; Gm7b5-C7b9-Fm7) establish and tonicize various minor keys.
- Modulations to distantly related major keys, such as Abmaj7 and Dbmaj7 via their respective ii-V progressions, add harmonic color and movement.
- The recurring Dm7b5-G7b9 often functions as a prolonged dominant preparation for the home key of C minor.
- The use of altered dominant chords like G7b9 and C7b9 introduces tension and opportunities for sophisticated voice leading.
Improvisation Focus: Altered dominant scales and arpeggios over V7b9 chords are crucial for navigating harmonic tension and resolution.
Difficulty Rating: 4 (Advanced Intermediate). Its frequent modulations, altered dominant chords, and varied ii-V-i progressions demand strong harmonic understanding and flexible scale application.