Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| C7 | 9 | 17.6% |
| G7 | 8 | 15.7% |
| Am7 | 7 | 13.7% |
| D7 | 4 | 7.8% |
| Cm7 | 4 | 7.8% |
| G7b9 | 3 | 5.9% |
| Bb0 | 2 | 3.9% |
| G6/B | 2 | 3.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 3 |
| G7b9 -> Cm7 | Resolution (Minor) | 3 |
Harmonic Highlights:
- Frequent use of Db7 and Db7#11 as colorful tritone substitutes or Lydian bVII7 chords, introducing rich dominant harmonic tension.
- The initial V7-I7 progression (G7-C7) establishes a bluesy, dominant-oriented character rather than a clear major tonic.
- A significant shift to the parallel minor key (Cm7, Gm7, G7b9, Cm7) towards the end, creating dramatic emotional contrast.
- Incorporation of non-diatonic chords like Bb0 for chromatic voice leading and tension.
Improvisation Focus: Navigating major/minor key center shifts and applied dominant scales.
Difficulty Rating: 4 (Advanced Intermediate) - The chromaticism, non-diatonic chords, and frequent shifts between parallel major and minor keys require sophisticated harmonic understanding.