Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7 | 6 | 14.0% |
| Em7 | 4 | 9.3% |
| Am7 | 3 | 7.0% |
| G7 | 3 | 7.0% |
| Gm7 | 2 | 4.7% |
| C7 | 2 | 4.7% |
| A7 | 2 | 4.7% |
| Ebm7 | 2 | 4.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7 -> G7 | Setup (Major Key) | 3 |
| Gm7 -> C7 | Setup (Major Key) | 2 |
| Em7 -> A7 | Setup (Major Key) | 2 |
| A7 -> Dm7 | Resolution (Minor) | 2 |
| F#m7 -> B7 | Setup (Major Key) | 1 |
| B7 -> Em7 | Resolution (Minor) | 1 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| Bm7b5 -> E7 | Setup (Minor Key) | 1 |
| E7 -> Am7 | Resolution (Minor) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| G7 -> Cmaj7 | Resolution (Major) | 1 |
| Bm7b5 -> E7b9 | Setup (Minor Key) | 1 |
| E7b9 -> Am7 | Resolution (Minor) | 1 |
| C7 -> Fmaj7 | Resolution (Major) | 1 |
| Fmaj7 -> Bb7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- The progression frequently employs ii-V sequences (e.g.,
F#m7 B7 Em7 A7,Bm7b5 E7 Am7) which temporarily tonicize related minor keys, leading into the main D minor center. - The
Fm/maj7chord provides a rich, non-diatonic color, potentially functioning as a bIIImaj7 or a modal interchange from D melodic minor. - A clear tritone substitution is observed with
Ebm7 Ab7(ii-V of Db), resolving or implying movement away from standard dominant functions. - The
Dm7/C, Bm7b5, E7, Am7, D7sequence demonstrates a common descending bass line combined with a secondary ii-V-i motion (to Am) and a dominant pedal.
Improvisation Focus: Navigating the numerous temporary ii-V-I progressions and their associated chord-scale relationships.
Difficulty Rating: 4 (Advanced Intermediate). Frequent non-diatonic ii-V progressions and chromatic substitutions demand sophisticated harmonic understanding and adaptability.