Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| C6 | 7 | 20.0% |
| Dm7 | 5 | 14.3% |
| Am7 | 4 | 11.4% |
| Ab7 | 4 | 11.4% |
| D7 | 2 | 5.7% |
| Db7 | 2 | 5.7% |
| A7 | 2 | 5.7% |
| G7 | 2 | 5.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 2 |
| A7 -> Dm7 | Resolution (Minor) | 2 |
| Dm7 -> G7 | Setup (Major Key) | 2 |
| Bm7b5 -> E7b9 | Setup (Minor Key) | 1 |
| E7b9 -> Am7 | Resolution (Minor) | 1 |
| Bm7b5 -> E7 | Setup (Minor Key) | 1 |
Harmonic Highlights
- Prominent use of tritone substitution, notably Db7 (subV7/C) resolving directly to the tonic C6.
- Frequent deployment of the bVI7 backdoor dominant (Ab7) creating a smooth, blues-inflected return to C6.
- Secondary dominant A7 (V7/ii) effectively sets up the Dm7 chord, enriching diatonic progressions.
- The inclusion of F7 (IV7) hints at blues influence or a dominant function within the C major framework.
Improvisation Focus Navigating altered dominant scales (Mixolydian b9, b13, Altered Scale) over the various dominant 7th chords.
Difficulty Rating 4 - Advanced. The consistent application of non-diatonic dominant chords requires a sophisticated understanding of melodic and harmonic substitutions.