Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 14 | 21.9% |
| G6 | 10 | 15.6% |
| D7 | 7 | 10.9% |
| E7 | 6 | 9.4% |
| Bm7 | 4 | 6.2% |
| Cmaj7 | 4 | 6.2% |
| F9 | 4 | 6.2% |
| A9 | 4 | 6.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 7 |
| E7 -> Am7 | Resolution (Minor) | 5 |
| Bm7 -> E7 | Setup (Major Key) | 4 |
| D7 -> Am7 | Resolution (Minor) | 4 |
| Am7 -> E7 | Setup (Major Key) | 2 |
| G7 -> Cmaj7 | Resolution (Major) | 2 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| F#m7b5 -> B7 | Setup (Minor Key) | 1 |
| B7 -> Em7 | Resolution (Minor) | 1 |
| Dm7b5 -> G7 | Setup (Minor Key) | 1 |
Harmonic Highlights:
- Frequent ii-V-I progressions resolve to both A minor (Bm7-E7-Am) and its relative major C major (Dm7-G7-Cmaj7).
- The G6 chord (bVII) functions as a temporary subdominant or modal interchange, adding a mixolydian flavor to the A minor tonality.
- The F9 chord introduces a dominant 7th quality over the subdominant (IV7 in C major), hinting at blues harmony or a backdoor dominant resolution.
Improvisation Focus: Navigating ii-V-I resolutions in both minor and relative major keys.
Difficulty Rating: 3 (Intermediate) - Requires understanding of diatonic harmony, common ii-V-I progressions in parallel keys, and some modal coloration.