Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ebmaj7 | 6 | 14.0% |
| Gm7 | 5 | 11.6% |
| Am7b5 | 5 | 11.6% |
| D7b9 | 5 | 11.6% |
| Fm7 | 4 | 9.3% |
| Bb7 | 4 | 9.3% |
| Cm7 | 4 | 9.3% |
| F7 | 3 | 7.0% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7b5 -> D7b9 | Setup (Minor Key) | 5 |
| D7b9 -> Gm7 | Resolution (Minor) | 4 |
| Fm7 -> Bb7 | Setup (Major Key) | 4 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 4 |
| Cm7 -> F7 | Setup (Major Key) | 3 |
| F7 -> Bbmaj7 | Resolution (Major) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| G7 -> Cm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Frequent tonicization of the relative minor (G minor) via prominent Am7b5-D7b9-Gm7 progressions.
- Employs a tritone substitution (Gb7 for C7) leading into a ii-V-I in Eb major (Gb7-Fm7-Bb7-Ebmaj7).
- Navigates fluidly between the home key of Bb major, its relative minor G minor, and the subdominant key Eb major.
Improvisation Focus: Altered Scale (Super Locrian) over dominant chords.
Difficulty Rating: 4 (Advanced Intermediate). The frequent minor ii-V-I progressions and sophisticated dominant alterations demand a strong grasp of harmonic functions and scale applications.