Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dbmaj7 | 6 | 14.3% |
| Ebm7 | 4 | 9.5% |
| A7 | 3 | 7.1% |
| Ab7 | 3 | 7.1% |
| Fm7 | 3 | 7.1% |
| Bb7 | 3 | 7.1% |
| Em7 | 2 | 4.8% |
| C7#5 | 2 | 4.8% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Em7 -> A7 | Setup (Major Key) | 2 |
| Ebm7 -> Ab7 | Setup (Major Key) | 2 |
| Ab7 -> Dbmaj7 | Resolution (Major) | 2 |
| Abm7 -> Db7 | Setup (Major Key) | 2 |
| Db7 -> Gbmaj7 | Resolution (Major) | 2 |
| Gm7b5 -> C7b9 | Setup (Minor Key) | 2 |
| C7b9 -> Fm7 | Resolution (Minor) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Bb7 -> Ebm7 | Resolution (Minor) | 2 |
| Ebm7 -> Ab7#5 | Setup (Major Key) | 2 |
| Ab7#5 -> Dbmaj7 | Resolution (Major) | 2 |
- Harmonic Highlights:
- Features “side-slipping” chromatic ii-V progressions (Em7-A7 moving to Ebm7-Ab7) that create a sophisticated, indirect resolution to the tonic.
- Employs an unconventional 14-bar A-section (36-bar A-B-A form), defying standard 32-bar jazz phrasing and structure.
- Utilizes minor ii-V-I cells (Gm7b5-C7b9-Fm7) to target the iii chord, adding harmonic density and secondary tonal centers.
- Strategic use of altered dominant chords (C7#5, Ab7#5) enables smooth chromatic voice leading between rapidly shifting, non-diatonic keys.
Improvisation Focus: Guide-tone voice leading through descending chromatic ii-V sequences.
Difficulty Rating: 4/5: The asymmetrical 14-bar phrasing and constant chromatic modulations require advanced harmonic literacy and high-level formal awareness.