Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Gm7 | 6 | 14.0% |
| Fm7 | 5 | 11.6% |
| Bb7 | 5 | 11.6% |
| Abmaj7 | 4 | 9.3% |
| Gb7 | 4 | 9.3% |
| Ebmaj7 | 3 | 7.0% |
| A7#11 | 2 | 4.7% |
| Bmaj7 | 2 | 4.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7 -> Bb7 | Setup (Major Key) | 4 |
| Bmaj7 -> E7#9#11 | Setup (Major Key) | 2 |
| Gm7 -> C7 | Setup (Major Key) | 2 |
| C7 -> Fm7 | Resolution (Minor) | 2 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 2 |
| Am7b5 -> D7b13 | Setup (Minor Key) | 1 |
| D7b13 -> Gm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Extensive use of non-diatonic dominant 7th chords with altered extensions (
A7#11,E7#9#11,Db7#11), creating frequent harmonic tension and “outside” sounds. - Chord root movement by major 3rds or tritones (e.g.,
Bmaj7toE7#9#11,Abmaj7toGb7) characteristic of Coltrane-esque substitutions and Henderson’s reharmonization style. - Strategic juxtaposition of dense chromatic substitutions with traditional ii-V-I progressions (
Fm7-Bb7-Ebmaj7), providing dynamic tension and release.
- Extensive use of non-diatonic dominant 7th chords with altered extensions (
Improvisation Focus: Precisely navigating complex altered dominant scales and polychords, integrating both “inside” and “outside” melodic concepts.
Difficulty Rating: 5 (Advanced) – The rapid, non-diatonic chord changes and extensive altered dominants demand sophisticated theoretical knowledge and a highly developed harmonic ear.