Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| F7 | 8 | 34.8% |
| Eb7 | 7 | 30.4% |
| Abm7 | 2 | 8.7% |
| Db7 | 2 | 8.7% |
| Dm7 | 1 | 4.3% |
| G7 | 1 | 4.3% |
| Cm7 | 1 | 4.3% |
| Bbm7 | 1 | 4.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Abm7 -> Db7 | Setup (Major Key) | 2 |
| Eb7 -> Abm7 | Resolution (Minor) | 1 |
| Db7 -> Abm7 | Resolution (Minor) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| G7 -> Cm7 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F7 -> Bbm7 | Resolution (Minor) | 1 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
Harmonic Highlights
- The persistent F7 (V7) to Eb7 (bVII7) alternation creates a blues-infused, modal dominant vamp, moving away from simple V-i resolution.
- Introduction of Abm7-Db7, a ii-V to Gb major (bVI), acts as a deceptive progression or brief chromatic tonicization, adding harmonic color.
- Sequential ii-V progressions (Dm7-G7 to Cm7-F7) demonstrate a modulating structure, leading towards the relative major (Bb major) or tonic major.
Improvisation Focus Navigating ii-V progressions and their related dominant scales, requiring adaptability to various temporary tonal centers.
Difficulty Rating 4: Requires advanced understanding of non-diatonic dominant functions and rapid key center shifts.