Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Cm7 | 4 | 12.1% |
| Eb7 | 4 | 12.1% |
| Bb7 | 4 | 12.1% |
| Fm7 | 3 | 9.1% |
| Gm/maj7 | 2 | 6.1% |
| Gm7 | 2 | 6.1% |
| Cm/maj7 | 2 | 6.1% |
| A7alt | 2 | 6.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bb7 -> Fm7 | Resolution (Minor) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 3 |
| Eb7 -> Bbm7 | Resolution (Minor) | 2 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| D7 -> Gm6 | Resolution (Minor) | 1 |
Harmonic Highlights:
- The prominent use of minor/major 7th chords (Gm/maj7, Cm/maj7) on expected minor functions (iii, vi) creates a distinctive melancholic atmosphere.
- Advanced chromaticism is evident with A7alt, indicating an altered dominant or tritone substitution, leading to D7 (V of G minor).
- A clear ii-V-I in the key (Fm7-Bb7) is followed by a strong temporary tonicization of the subdominant (Ab) through a Bbm7-Eb7-Eb9 progression.
Improvisation Focus: Melodic Minor scale and its derived modes (e.g., Altered Scale for dominants, Dorian b2) are crucial.
Difficulty Rating: 4 (Advanced Intermediate) - The sophisticated minor/major 7th voicings, altered dominants, and brief modulations demand a solid grasp of advanced jazz harmony.