Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Eb7 | 8 | 16.0% |
| Eb | 4 | 8.0% |
| Ab6 | 4 | 8.0% |
| Bbm7 | 4 | 8.0% |
| Gm7 | 4 | 8.0% |
| Fm7 | 4 | 8.0% |
| Bb7 | 4 | 8.0% |
| Abmaj7 | 2 | 4.0% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bbm7 -> Eb7 | Setup (Major Key) | 4 |
| Fm7 -> Bb7 | Setup (Major Key) | 4 |
| Eb7 -> Bbm7 | Resolution (Minor) | 2 |
| Eb7 -> Abmaj7 | Resolution (Major) | 2 |
| Gm7 -> C7b9 | Setup (Major Key) | 2 |
| C7b9 -> Fm7 | Resolution (Minor) | 2 |
| Dm7b5 -> G7b9 | Setup (Minor Key) | 1 |
| G7b9 -> Cm | Resolution (Minor) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| C7 -> Fm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- The prominent use of Eb7 (V7/IV) directly preceding Ab6 establishes a strong dominant-to-subdominant pull.
- A clear ii-V-I progression (Bbm7-Eb7-Abmaj7) functions as a temporary tonicization of the IV chord.
- The striking modal mixture from Abmaj7 to Abm6 (IV to iv) adds a melancholic color and harmonic depth.
- The descending minor chord sequence (Cm, Cm/maj7, Cm7, Cm6) offers rich melodic minor or chromatic bass movement possibilities.
Improvisation Focus: Accurately outlining the functional harmony of secondary dominants and the iv minor modal interchange is paramount.
Difficulty Rating: 4 (Advanced Intermediate). The sophisticated use of modal mixture and nuanced minor chord qualities requires careful harmonic navigation.