Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Gm7 | 10 | 18.9% |
| C7 | 9 | 17.0% |
| Fmaj7 | 7 | 13.2% |
| D7 | 5 | 9.4% |
| Am7 | 4 | 7.5% |
| G7 | 3 | 5.7% |
| Bb7 | 2 | 3.8% |
| Ab07 | 2 | 3.8% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Gm7 -> C7 | Setup (Major Key) | 9 |
| D7 -> Gm7 | Resolution (Minor) | 5 |
| C7 -> Fmaj7 | Resolution (Major) | 5 |
| Fmaj7 -> Bb7 | Setup (Major Key) | 2 |
| Am7 -> D7 | Setup (Major Key) | 2 |
| Dm7 -> G7 | Setup (Major Key) | 2 |
| C7 -> Gm7 | Resolution (Minor) | 1 |
| Am7b5 -> D7b9 | Setup (Minor Key) | 1 |
| D7b9 -> Gm7 | Resolution (Minor) | 1 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- The progression frequently employs ii-V-I movements (
Gm7-C7-Fmaj7) and secondary dominant functions (D7as V7/ii). - An
Ab07chord serves as a chromatic leading-tone diminished, creating tension before resolving toGm7(ii chord). Bb7#11functions as a tritone substitution forE7(V7 of Am7), introducing a Lydian Dominant sound with an immediate resolution to the iii chord.- The
Am7-D7-Gm7-C7sequence (iii-VI-ii-V) provides a diatonic descending cycle driving back to the tonic.
Improvisation Focus: Fluid navigation of ii-V-I changes, incorporating altered scales (e.g., Lydian Dominant) and chromatic approach notes over the sophisticated harmonic embellishments.
Difficulty Rating: 3 (Intermediate) - Requires navigating standard ii-V-I movements alongside sophisticated chromatic diminished and tritone substitution concepts.