Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| D7b9 | 4 | 12.1% |
| Am7b5 | 3 | 9.1% |
| Gm7 | 3 | 9.1% |
| Cm7 | 3 | 9.1% |
| C7 | 2 | 6.1% |
| F7b9 | 2 | 6.1% |
| Bbm7 | 2 | 6.1% |
| G7b9 | 2 | 6.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7b5 -> D7b9 | Setup (Minor Key) | 3 |
| D7b9 -> Gm7 | Resolution (Minor) | 3 |
| Gm7 -> C7 | Setup (Major Key) | 2 |
| Cm7 -> F7b9 | Setup (Major Key) | 2 |
| F7b9 -> Bbm7 | Resolution (Minor) | 1 |
| Em7b5 -> A7b9 | Setup (Minor Key) | 1 |
| D7 -> Am7b5 | Resolution (Minor) | 1 |
| G7b9 -> Cm7 | Resolution (Minor) | 1 |
| F7 -> Bbm7 | Resolution (Minor) | 1 |
- The frequent Am7b5-D7b9-Gm7 ii-V-i progression firmly establishes the G minor tonic.
- Secondary ii-V progressions to both the relative major (Cm7-F7b9 to Bb) and the dominant (Em7b5-A7b9 to D minor) provide harmonic interest.
- Chromatic alterations and dominant substitutions are prominent, exemplified by the Eb7 acting as a tritone substitution for A7 before resolving to D7.
- The Bbm7-G7b9 progression introduces a sophisticated movement, functioning as a ii-V towards Cm (the minor v chord).
Improvisation Focus: G Harmonic Minor scale.
Difficulty Rating: 4 (Intermediate-Advanced). The frequent modulations, secondary dominants, and chromatic substitutions require careful navigation beyond basic minor key harmony.