Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| C7 | 5 | 13.9% |
| F7 | 5 | 13.9% |
| G7 | 3 | 8.3% |
| Bb6 | 3 | 8.3% |
| Bbmaj7 | 2 | 5.6% |
| Am7b5 | 2 | 5.6% |
| D7b9 | 2 | 5.6% |
| Bb7 | 2 | 5.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7b5 -> D7b9 | Setup (Minor Key) | 2 |
| Cm7 -> F7 | Setup (Major Key) | 2 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
| D7b9 -> Gm7 | Resolution (Minor) | 1 |
| Gm/F -> C7 | Setup (Major Key) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
Harmonic Highlights
- The recurring Am7b5 - D7b9 functions as a iiø-V7b9 leading to G minor, often preceding a subsequent chain of dominants.
- A prominent descending cycle of dominant 7th chords (G7-C7-F7-Bb7) creates strong V7-of-V7 motion, ultimately resolving to Ebmaj7.
- The Abmaj7 (bVIImaj7) introduces modal interchange or a ‘backdoor’ dominant quality, adding a rich harmonic color.
- Chromatic descending bass movement (Gm, Gm/F#, Gm/F) provides smooth internal voice leading and tension resolution.
Improvisation Focus: Navigating various Mixolydian scales over the chain of dominant chords.
Difficulty Rating: 3 - Requires awareness of extended dominant cycles and secondary ii-V patterns within a major key.