Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bbm7 | 9 | 17.0% |
| Eb7 | 7 | 13.2% |
| Ab6 | 6 | 11.3% |
| Cm7 | 5 | 9.4% |
| F7 | 5 | 9.4% |
| Ab07 | 4 | 7.5% |
| Cm7b5 | 2 | 3.8% |
| F7b9 | 2 | 3.8% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bbm7 -> Eb7 | Setup (Major Key) | 6 |
| Cm7 -> F7 | Setup (Major Key) | 5 |
| F7 -> Bbm7 | Resolution (Minor) | 4 |
| Cm7b5 -> F7b9 | Setup (Minor Key) | 2 |
| F7b9 -> Bbm7 | Resolution (Minor) | 2 |
| Eb7 -> Abmaj7 | Resolution (Major) | 2 |
| C7b13 -> Fm6 | Resolution (Minor) | 1 |
| Fm6 -> Bb7 | Setup (Major Key) | 1 |
| Bm7 -> E7 | Setup (Major Key) | 1 |
- Prominent use of extended iiø-V progressions, such as
Cm7b5-F7b9(iiø-V of ii) leading toBbm7. - The
C7b13functions as a colorful secondary dominant (V/vi), creating tension before resolving toFm. - The recurring
Ab07at the tonic position introduces an unusual, dissonant common-tone diminished or passing diminished sonority. - A classic V/V-V movement is employed with
Bb7-Eb7, efficiently setting up the final return to the tonic.
Improvisation Focus: Navigating altered dominant scales (e.g., Altered Scale for F7b9, C7b13) to capture the tension-release.
Difficulty Rating: 4 (Advanced) Requires a strong understanding of navigating non-diatonic harmony, including altered dominant tensions and minor ii-V changes.