Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 2 | 15.4% |
| Dbmaj7 | 2 | 15.4% |
| Bm7b5 | 2 | 15.4% |
| E7#9 | 2 | 15.4% |
| Cm7 | 1 | 7.7% |
| F7b9 | 1 | 7.7% |
| Bbmaj7 | 1 | 7.7% |
| Abm7 | 1 | 7.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bm7b5 -> E7#9 | Setup (Minor Key) | 2 |
| E7#9 -> Am7 | Resolution (Minor) | 1 |
| Cm7 -> F7b9 | Setup (Major Key) | 1 |
| F7b9 -> Bbmaj7 | Resolution (Major) | 1 |
| Abm7 -> Db7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- The prominent Dbmaj7 following Am7 creates a striking chromatic mediant effect, contrasting with the subsequent standard iiø7-V7alt-i resolution (Bm7b5-E7#9-Am7) in A minor.
- Abrupt modulation occurs via a clear ii-V-I progression (Cm7-F7b9-Bbmaj7), tonicizing Bb major a half-step above the initial A minor key center.
- Further harmonic complexity is introduced by the Abm7-Db7 ii-V, implying a brief venture into Gb major, demonstrating advanced chromatic side-slipping.
Improvisation Focus: Adapting to local tonalities through advanced chord-scale knowledge.
Difficulty Rating: 4 (Advanced). Requires a strong grasp of altered scales, non-diatonic harmony, and quick adaptation to multiple temporary key centers.