Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 12 | 19.0% |
| Bm7 | 11 | 17.5% |
| E7b9 | 7 | 11.1% |
| D7b9 | 4 | 6.3% |
| Bb07 | 3 | 4.8% |
| Bbm7 | 3 | 4.8% |
| Eb7 | 3 | 4.8% |
| Cm6 | 3 | 4.8% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bm7 -> E7b9 | Setup (Major Key) | 6 |
| E7b9 -> Am7 | Resolution (Minor) | 6 |
| Bbm7 -> Eb7 | Setup (Major Key) | 3 |
| Am7 -> D7b9 | Setup (Major Key) | 3 |
| Cm6 -> F7 | Setup (Major Key) | 2 |
| Bm7 -> E7 | Setup (Major Key) | 2 |
| Am7b5 -> D7b9 | Setup (Minor Key) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| G7 -> Cmaj7 | Resolution (Major) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F#m7b5 -> B7b9 | Setup (Minor Key) | 1 |
| B7b9 -> Em7 | Resolution (Minor) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| E7 -> Am7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Prominent use of ii-V progressions modulating to remote tonal centers, such as Bbm7-Eb7 (to Ab major) and Cm6-F7 (to Bb major).
- Frequent reharmonization of the A minor tonic through chromatic dominant functions and tritone substitutions (e.g., Eb7 resolving to Am7).
- Interplay between conventional ii-V-i movements (Bm7-E7b9-Am7) and unexpected dominant resolutions (e.g., D7b9 followed by Bm7).
Improvisation Focus: Altered scale application over dominant chords.
Difficulty Rating: 4 (Advanced). Frequent, rapid modulations to remote keys and complex dominant alterations require advanced harmonic understanding and agility.