Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bbmaj7 | 5 | 12.8% |
| G7b5 | 4 | 10.3% |
| Dbm7 | 4 | 10.3% |
| Gb7 | 4 | 10.3% |
| Cm7 | 4 | 10.3% |
| F7 | 4 | 10.3% |
| Am7 | 3 | 7.7% |
| Bm7b5 | 3 | 7.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dbm7 -> Gb7 | Setup (Major Key) | 4 |
| Cm7 -> F7 | Setup (Major Key) | 4 |
| Bm7b5 -> E7 | Setup (Minor Key) | 3 |
| E7 -> Am7 | Resolution (Minor) | 2 |
| F7 -> Bbmaj7 | Resolution (Major) | 2 |
- The opening
G7b5immediately introduces an altered dominant, preceding a non-functionalDbm7-Gb7II-V pairing that implies B major, creating initial harmonic ambiguity. - A distinct
Cm7-F7II-V progression leads toBbmaj7, temporarily shifting the tonal center to Bb, unexpectedly followed by a chromaticB7b5before resolving further. - The core key of A minor is frequently re-established through standard
Am7, Bm7b5, E7i-iim7b5-V7 progressions, providing stability amidst the earlier advanced chromatic movements.
Improvisation Focus: Altered dominant scales (e.g., superlocrian).
Difficulty Rating: 5 (Advanced) - The frequent use of altered dominants, non-functional II-Vs, and distant, rapid modulations requires sophisticated harmonic understanding and a broad melodic vocabulary.