Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb6 | 5 | 18.5% |
| F7 | 4 | 14.8% |
| Cm7 | 3 | 11.1% |
| Eb7 | 2 | 7.4% |
| Gb7 | 2 | 7.4% |
| Dm7 | 2 | 7.4% |
| G7 | 2 | 7.4% |
| Ebmaj7 | 2 | 7.4% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 3 |
| Dm7 -> G7 | Setup (Major Key) | 2 |
| G7 -> Cm7 | Resolution (Minor) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- Striking use of Gb7 (bVI7) as a chromatic dominant substitution, providing an unexpected, non-diatonic harmonic shift.
- Clear tonicization of the subdominant (Eb major) via a strong ii-V-I progression (Fm7-Bb7-Ebmaj7).
- Secondary dominant C7 (V7/F) leads effectively to the dominant F7, often intensified with an altered #5 extension.
- Blues-inflected Eb7 (IV7) briefly colors the tonic Bb6, introducing a dominant quality to the subdominant.
Improvisation Focus: Mixolydian and Altered scales for navigating diverse dominant chord functions.
Difficulty Rating: 4 (Advanced Intermediate) due to frequent modulations, chromatic dominant substitutions, and rapid harmonic rhythm.