Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 5 | 15.6% |
| Gm7 | 5 | 15.6% |
| Bb6 | 4 | 12.5% |
| C7 | 4 | 12.5% |
| Ab7 | 2 | 6.2% |
| F7 | 2 | 6.2% |
| Dm7 | 2 | 6.2% |
| F6 | 1 | 3.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Gm7 -> C7 | Setup (Major Key) | 4 |
| A7 -> Dm7 | Resolution (Minor) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| D7 -> Gm7 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F7 -> Bbmaj7 | Resolution (Major) | 1 |
| Bbmaj7 -> Eb7 | Setup (Major Key) | 1 |
Harmonic Highlights
- Prominent Ab7 (bII7 of ii) functions as a tritone substitute for D7 (V7/ii), adding a distinct chromatic dominant color.
- Temporary dominant F7 acts as V7 of IV, momentarily tonicizing Bb.
- The inclusion of Bbm (bIV minor) provides a characteristic minor plagal sound before returning to the tonic.
- Secondary dominant A7 (V7/vi) leads effectively to Dm7, expanding the harmonic landscape.
Improvisation Focus Highlighting bII7 tritone substitutions (Ab7) and bIV minor colors (Bbm).
Difficulty Rating 3 (Intermediate). It incorporates chromatic tritone substitutions and minor plagal chords within a mostly diatonic framework, requiring specific scale knowledge.