Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| A7 | 9 | 18.8% |
| G7 | 8 | 16.7% |
| D7 | 7 | 14.6% |
| E7 | 5 | 10.4% |
| Am7 | 4 | 8.3% |
| F#7 | 3 | 6.2% |
| F7 | 3 | 6.2% |
| G/D | 2 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 4 |
Harmonic Highlights:
- Prominent chromatic descending dominant 7ths (G7, F#7, F7, E7) create significant harmonic tension and brief, shifting tonal centers.
- Frequent secondary dominant functions are present, such as A7 (V7/V) and E7 (V7/vi), anticipating the subsequent chords.
- Standard II-V-I progressions (Am7-D7-G6) firmly establish and return to the G major key center.
- The tonic G7, rather than a Gmaj7, imbues the harmony with a bluesy or dominant-tonic character.
Improvisation Focus: Navigating the chromatic descending dominant 7ths using appropriate Mixolydian and Altered scales, emphasizing chord tones and guide tones for smooth transitions.
Difficulty Rating: 4 (Advanced Intermediate) - The rapid chromatic dominant 7th changes demand quick harmonic analysis and precise scale/arpeggio application, challenging improvisers beyond basic II-V-I patterns.