Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ab7 | 6 | 14.0% |
| Eb7 | 5 | 11.6% |
| G7 | 5 | 11.6% |
| Cm7 | 5 | 11.6% |
| C7 | 4 | 9.3% |
| Bb7 | 4 | 9.3% |
| Fm7 | 3 | 7.0% |
| Bbm7 | 2 | 4.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| G7 -> Cm7 | Resolution (Minor) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 3 |
| Gm7 -> C7 | Setup (Major Key) | 2 |
| C7 -> Fm7 | Resolution (Minor) | 2 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- The opening Eb7 establishes a blues-inflected tonic, distinct from a typical major key sound, immediately setting a modal tone.
- Frequent secondary dominants such as G7 (V7/Cm) and C7 (V7/Fm, leading to F7) drive harmonic motion through temporary resolutions.
- The recurring Ab7 (bVI7) often functions as a tritone substitute for D7 (V7/Gm) or provides a distinctive modal color.
- The inclusion of Cm/maj7 adds a characteristic minor-major sound, enriching the harmonic palette.
Improvisation Focus: Dominant 7th scales (Mixolydian, Lydian-dominant, Altered) and their precise application over the frequent V7 and substitution chords.
Difficulty Rating: 4 (Advanced). The sophisticated use of non-diatonic dominants, chromaticism, and shifting harmonic rhythm demands a strong grasp of advanced jazz harmony.