Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm | 6 | 25.0% |
| Em7b5 | 5 | 20.8% |
| A7b9 | 5 | 20.8% |
| D7#9 | 1 | 4.2% |
| Gm | 1 | 4.2% |
| Gm7/F | 1 | 4.2% |
| Dbm | 1 | 4.2% |
| Cm7 | 1 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Em7b5 -> A7b9 | Setup (Minor Key) | 5 |
| A7b9 -> Dm | Resolution (Minor) | 5 |
| D7#9 -> Gm | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| Dm -> A7#9 | Setup (Major Key) | 1 |
Harmonic Highlights
- Persistent i-iiø7-V7b9 progression in D minor (Dm, Em7b5, A7b9) establishes a strong modal and functional harmonic foundation.
- Incorporation of D7#9 functions as a secondary dominant (V7/iv), momentarily pivoting to Gm and expanding the minor key’s dominant functions.
- A notable chromatic descent from Dm to Dbm, abruptly shifting the harmonic landscape into a ii-V-I sequence (Cm7-F7-Bb7) in Bb major, indicating significant tonal shifts.
Improvisation Focus Navigating D Harmonic Minor across the tonic and dominant chords.
Difficulty Rating 4 (Advanced). The repetitive minor ii-V-I is accessible, but the subsequent chromatic modulations and rapid key changes demand advanced harmonic understanding and agility.