Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Cm7 | 10 | 16.4% |
| F7 | 10 | 16.4% |
| Bbmaj7 | 6 | 9.8% |
| B07 | 6 | 9.8% |
| C7 | 5 | 8.2% |
| Gm7 | 4 | 6.6% |
| D7 | 3 | 4.9% |
| Dm7 | 3 | 4.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 10 |
| F7 -> Bbmaj7 | Resolution (Major) | 5 |
| Gm7 -> C7 | Setup (Major Key) | 4 |
| D7 -> Gm7 | Resolution (Minor) | 3 |
| Dm7 -> G7 | Setup (Major Key) | 3 |
| G7 -> Cm7 | Resolution (Minor) | 3 |
| Am7b5 -> D7 | Setup (Minor Key) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| C7 -> Fm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Prominent use of the B°7 chord, functioning as a chromatic passing diminished from Imaj7 to ii minor 7 (Bbmaj7 to Cm7), creating a characteristic tension and leading tone function.
- Clear modulation to the relative minor key (Am7b5-D7-Gm7), providing harmonic contrast and a common jazz progression.
- Frequent secondary dominant functionality, including C7 (V/V) and a strong ii-V-I progression to the subdominant (Fm7-Bb7-Eb6), expanding the harmonic vocabulary.
Improvisation Focus: Navigating the frequent ii-V progressions and the chromatic passing diminished chords with flexibility, often employing altered scales or melodic minor concepts over dominant and diminished chords.
Difficulty Rating: 3 (Intermediate) - The blend of diatonic harmony with chromatic passing chords and clear modulations requires attentive melodic and harmonic decision-making.