Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ab7 | 3 | 13.0% |
| Db07 | 3 | 13.0% |
| Db6 | 3 | 13.0% |
| Fm7b5 | 2 | 8.7% |
| Bb7b9 | 2 | 8.7% |
| Ebm7 | 2 | 8.7% |
| Fmaj7 | 2 | 8.7% |
| Dbmaj7 | 1 | 4.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7b5 -> Bb7b9 | Setup (Minor Key) | 2 |
| Bb7b9 -> Ebm7 | Resolution (Minor) | 2 |
| Ebm7 -> Ab7 | Setup (Major Key) | 2 |
| Gm7b5 -> C7b13 | Setup (Minor Key) | 1 |
| C7b13 -> Fmaj7 | Resolution (Major) | 1 |
| Abm7b5 -> Db7b13 | Setup (Minor Key) | 1 |
| Db7b13 -> Gbm | Resolution (Minor) | 1 |
Harmonic Highlights:
- Frequent ii-V-I cycles, often tonicizing secondary key areas (e.g., iiø7/ii - V7/ii leading to ii-V-I in Db major).
- Strategic use of altered dominant chords (Bb7b9, C7b13, Db7b13) for heightened tension and chromatic voice leading.
- Employs passing diminished chords (Db07) and abrupt modulations (e.g., to F major via Gm7b5-C7b13) to create harmonic interest.
- Features a notable iiø7-V7-i progression (Abm7b5-Db7b13-Gbm) that resolves to a minor tonic.
Improvisation Focus: Navigating the rapid chord changes and altered dominants necessitates a strong command of chord scales and sophisticated voice leading.
Difficulty Rating: 5 (Advanced). The tune demands mastery of multiple key centers, altered scales, and navigating complex modulations.