Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Em7b5 | 7 | 12.7% |
| A7b9 | 7 | 12.7% |
| Dm7 | 7 | 12.7% |
| C6 | 5 | 9.1% |
| G7 | 4 | 7.3% |
| Fm7 | 3 | 5.5% |
| Bb7 | 3 | 5.5% |
| A7 | 3 | 5.5% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| A7b9 -> Dm7 | Resolution (Minor) | 4 |
| Fm7 -> Bb7 | Setup (Major Key) | 3 |
| A7b9 -> Em7b5 | Resolution (Minor) | 3 |
| Em7b5 -> A7b9 | Setup (Minor Key) | 2 |
| Dm7 -> A7b9 | Setup (Major Key) | 2 |
| Dm7 -> G7 | Setup (Major Key) | 2 |
| Em7b5 -> A7 | Setup (Minor Key) | 2 |
| A7 -> Dm7 | Resolution (Minor) | 2 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| G7 -> Dm7 | Resolution (Minor) | 1 |
| Am7 -> E7b13 | Setup (Major Key) | 1 |
| Dm7b5 -> G7 | Setup (Minor Key) | 1 |
| B7b9 -> Em7b5 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F7 -> Cmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- Frequent secondary dominants and ii-V progressions target minor keys (e.g., Em7b5-A7b9 to Dm, E7b13 to Am).
- Chromatically shifting ii-V patterns like Ebm7-Ab7 provide “side-slipping” modulations before resolving to the dominant G7.
- Abundant half-diminished chords (Em7b5, Dm7b5) function as precursors to minor ii-V-i progressions or as tension-building passing chords.
Improvisation Focus: Navigating ii-V changes with appropriate modal choices and altered scales for dominant chords.
Difficulty Rating: 4 (Advanced Intermediate). The rapid, non-diatonic ii-V movements and chromatic modulations require strong harmonic awareness.