Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7 | 6 | 14.6% |
| Bb7 | 5 | 12.2% |
| Eb7 | 3 | 7.3% |
| C7 | 3 | 7.3% |
| A7b9 | 3 | 7.3% |
| B07 | 3 | 7.3% |
| F7#9/C | 3 | 7.3% |
| F7#9 | 3 | 7.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| A7b9 -> Dm7 | Resolution (Minor) | 2 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| D7b9 -> Gm | Resolution (Minor) | 1 |
| Gm -> D7b9 | Setup (Major Key) | 1 |
| D7b9 -> Gm7 | Resolution (Minor) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Frequent Dm7 - Eb7 pairing, functioning as a chromatic dominant substitute (Eb7 as bII7 of Dm) creating a distinct “slipping” sound.
- Strong tonicization of the subdominant (Bb major) established by a clear Cm7-F7-Bb7 ii-V-I progression.
- Application of altered dominant chords (A7b9, F7#9) to heighten tension and add a blues-infused color to both secondary and tonic dominant functions.
Improvisation Focus: Altered Dominant scales (e.g., for A7b9, F7#9) and Mixolydian mode with chromatic alterations for the Eb7.
Difficulty Rating: 4 (Advanced Intermediate) - The blend of functional harmony with frequent non-diatonic dominant chords and temporary modulations demands sophisticated melodic and harmonic understanding.