Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Gm7 | 7 | 12.7% |
| C7 | 6 | 10.9% |
| Dm7 | 5 | 9.1% |
| G7 | 5 | 9.1% |
| Fmaj7 | 4 | 7.3% |
| Ebm7 | 4 | 7.3% |
| Ab7 | 4 | 7.3% |
| Fm7 | 2 | 3.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Gm7 -> C7 | Setup (Major Key) | 6 |
| Dm7 -> G7 | Setup (Major Key) | 5 |
| Ebm7 -> Ab7 | Setup (Major Key) | 4 |
| C7 -> Fmaj7 | Resolution (Major) | 3 |
| G7 -> Dm7 | Resolution (Minor) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 2 |
| Ab7 -> Ebm7 | Resolution (Minor) | 2 |
| Ab7 -> Dbmaj7 | Resolution (Major) | 2 |
| G7 -> Cmaj7 | Resolution (Major) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| C7 -> Gm7 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F7 -> Bbmaj7 | Resolution (Major) | 1 |
| Bbm6 -> Eb7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Prominent use of ii-V-I progressions, often tonicizing the dominant (Fmaj7) and subdominant (Ebmaj7) of Bb.
- Striking chromatic modulation via Ebm7-Ab7 to Dbmaj7 (bIII of Bb), moving from the IV to the bIII via whole-step descending ii-V-I.
- Repeating Dm7-G7 sections suggest an extended secondary dominant function (ii-V to C) or an iterative turnaround, creating sustained tension.
Improvisation Focus: Navigating complex modulations by accurately outlining each chord’s arpeggio and associated mode.
Difficulty Rating: 4 (Advanced Intermediate) - The frequent and distant modulations, particularly to Db major, require a strong grasp of harmonic function and chromatic navigation beyond diatonic comfort.