Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| G7b9 | 4 | 12.1% |
| Cm7 | 4 | 12.1% |
| F7 | 4 | 12.1% |
| Bb6 | 2 | 6.1% |
| C#07 | 2 | 6.1% |
| Bb/D | 2 | 6.1% |
| Bb7 | 2 | 6.1% |
| Gm7 | 2 | 6.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| G7b9 -> Cm7 | Resolution (Minor) | 4 |
| Cm7 -> F7 | Setup (Major Key) | 2 |
| Gm7 -> C7 | Setup (Major Key) | 2 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| Abm7 -> Db7 | Setup (Major Key) | 1 |
| Cm7b5 -> F7 | Setup (Minor Key) | 1 |
Harmonic Highlights:
- The C#07 functions as a chromatic passing diminished, creating tension before resolving to Bb/D.
- Repeated secondary dominant chords, like G7b9 (V7/ii), propel the harmony with strong voice leading.
- Rapid, brief modulations via ii-V progressions (e.g., Abm7-Db7 to Gb; Gm7-C7 to F) add harmonic surprise.
- The Cm7b5-F7 (iiø7-V7 of Bb minor) progression creates a bluesy minor color before resolving to Bb major.
Improvisation Focus: Bebop scales and arpeggios that outline the numerous temporary key centers.
Difficulty Rating: 4 (Advanced) The frequent, rapid modulations and altered dominant chords require a sophisticated understanding of multiple key centers and scale applications.