Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Fm7 | 5 | 11.6% |
| Bb7 | 4 | 9.3% |
| Cm7 | 3 | 7.0% |
| Ebmaj7 | 3 | 7.0% |
| Ab7 | 3 | 7.0% |
| Gb7#11 | 2 | 4.7% |
| Gm7b5 | 2 | 4.7% |
| C7b9 | 2 | 4.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bb7 -> Ebmaj7 | Resolution (Major) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Ebmaj7 -> Ab7 | Setup (Major Key) | 2 |
| Gm7b5 -> C7b9 | Setup (Minor Key) | 2 |
| C7b9 -> Fm7 | Resolution (Minor) | 2 |
| Am7b5 -> D7b9 | Setup (Minor Key) | 1 |
| D7b9 -> Gm7 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F7 -> Bbmaj7 | Resolution (Major) | 1 |
| Dm7b5 -> G7b9 | Setup (Minor Key) | 1 |
Harmonic Highlights:
- Tritone substitution (Gb7#11 for C7/Fm) introducing chromatic alteration.
- Backdoor dominant (Ab7) preceding a iiø7-V7 to the ii chord (Gm7b5-C7b9 to Fm7).
- Chromatic minor chord movement (Abm7, Bm7) creating unexpected color before the dominant Bb7b9.
- Standard minor iiø7-V7-i progressions (Am7b5-D7b9 to Gm7) for temporary modulation.
Improvisation Focus: Altered scales for navigating various dominant 7th qualities.
Difficulty Rating: 4 (Advanced Intermediate). Frequent use of tritone substitutions, backdoor dominants, and complex ii-V progressions requires a solid grasp of harmonic extensions and alterations.