Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 10 | 25.0% |
| D7 | 7 | 17.5% |
| Gmaj7 | 4 | 10.0% |
| Bm7 | 3 | 7.5% |
| E9#5 | 3 | 7.5% |
| C7 | 2 | 5.0% |
| Em7 | 2 | 5.0% |
| A7 | 2 | 5.0% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 5 |
| D7 -> Gmaj7 | Resolution (Major) | 3 |
| D7 -> Am7 | Resolution (Minor) | 2 |
| Gmaj7 -> C7 | Setup (Major Key) | 2 |
| Em7 -> A7 | Setup (Major Key) | 2 |
| B7 -> Em7 | Resolution (Minor) | 1 |
| A7 -> Em7 | Resolution (Minor) | 1 |
| Bm7b5 -> E7b9 | Setup (Minor Key) | 1 |
| E7b9 -> Am7 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| E7 -> Am7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Prominent use of the minor ii-V-i progression (Bm7 - E9#5 - Am7), featuring an altered V chord for strong resolution to the minor tonic.
- Characteristic V/bVII - bVIImaj7 movement (D7 - Gmaj7), providing a distinct modal flavor and borrowing from A Dorian.
- Inclusion of secondary dominants (B7 -> Em7) to temporarily tonicize the minor v chord, adding internal harmonic motion.
Improvisation Focus: A Dorian scale, as it complements the Am7 and integrates well with the D7-Gmaj7 progression.
Difficulty Rating: 3 (Intermediate). The frequent use of secondary dominants, altered V chords, and modal interchange requires navigating beyond basic minor scales.