Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Fm7 | 6 | 17.6% |
| Bb13 | 3 | 8.8% |
| Bb7b9 | 3 | 8.8% |
| Eb6 | 2 | 5.9% |
| Abm6 | 2 | 5.9% |
| Gm9 | 2 | 5.9% |
| Gb07 | 2 | 5.9% |
| Bb7sus | 2 | 5.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7 -> Bb7sus | Setup (Major Key) | 1 |
| Am7b5 -> D7 | Setup (Minor Key) | 1 |
| D7 -> Gm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Standard ii-V-I progressions are extended with variations like Bb13 and Bb7b9, adding color to the home key’s dominant.
- Features a strong secondary ii-V-i progression (Am7b5-D7-Gm7) tonicizing the iii chord, requiring quick adaptation to G minor.
- A striking chromatic ii-V (F#m7-B13) briefly shifts focus, offering a significant harmonic surprise before returning to the established progression.
- Includes a bVII dominant chord (Db9), providing a backdoor dominant sound or a rich, colorful extension.
Improvisation Focus: Altered Dominant scales, particularly over the various V7 chords, are crucial for navigating the complex tensions and resolutions.
Difficulty Rating: 4/5. The frequent, rapid modulations and the inclusion of a chromatic ii-V progression demand advanced harmonic agility and ear training.