Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7 | 3 | 12.5% |
| Cm7 | 3 | 12.5% |
| F7 | 3 | 12.5% |
| Ebmaj7 | 2 | 8.3% |
| Ebm6 | 2 | 8.3% |
| Db07 | 2 | 8.3% |
| Bb6 | 2 | 8.3% |
| Am7 | 1 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 3 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- The
Ebmaj7 - Ebm6progression provides a distinctive IVmaj7 - iv6 melancholic color, often preceding a tonic or other diatonic chord. - A
Dm7 - Db07 - Cm7sequence employs a descending chromatic diminished chord (Db07) as a passing or common-tone device, connecting the iii and ii chords. - An extended
II-Vchain (Am7-D7, Dm7-G7, Gm7-C7) creates significant harmonic momentum by navigating through multiple temporary tonal centers. - The
Bb7acting as a V7/IV leads strongly to the subdominantEbmaj7, a common dominant extension.
Improvisation Focus: Effective use of chord-scale theory to outline the frequent II-V progressions and chromatic diminished chords.
Difficulty Rating: 4/5 This standard features a fast harmonic rhythm, numerous secondary II-V progressions, and chromatic diminished chords, requiring a strong command of jazz vocabulary.