Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 5 | 12.2% |
| D7 | 4 | 9.8% |
| C7 | 4 | 9.8% |
| Em7 | 4 | 9.8% |
| B7#5 | 3 | 7.3% |
| E7 | 3 | 7.3% |
| A7#5 | 2 | 4.9% |
| G7 | 2 | 4.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 2 |
| Am7 -> D7sus | Setup (Major Key) | 2 |
| D7 -> Am7 | Resolution (Minor) | 1 |
| Em7 -> A7b13 | Setup (Major Key) | 1 |
| A7b13 -> Dm | Resolution (Minor) | 1 |
| Em7b5 -> A7b9 | Setup (Minor Key) | 1 |
| Am7 -> D7#5 | Setup (Major Key) | 1 |
| E7 -> Am7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Extensive use of descending dominant cycles (e.g., B7#5-E7-A7#5-D7) featuring altered tensions like #5, creating strong forward motion.
- Brief, yet distinct, tonicizations including a strong V7b13-i movement (A7b13-Dm), temporarily shifting harmonic centers from G major.
- Incorporation of chromatic passing diminished chords (e.g., A#07 leading to Bm7), enhancing voice leading and harmonic color.
- Alternating between traditional ii-V-I progressions and blues-inflected dominant 7ths (G7, C7).
Improvisation Focus: Navigating altered dominant scales (Mixolydian b9, b13; Altered/Superlocrian) and their resolutions is paramount.
Difficulty Rating: 4 (Advanced Intermediate) – The frequent use of altered dominants, passing diminished chords, and rapid key center shifts demands advanced harmonic understanding.