Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Cm7 | 4 | 14.3% |
| F7 | 4 | 14.3% |
| A7 | 4 | 14.3% |
| Bbmaj7 | 2 | 7.1% |
| F#m7 | 2 | 7.1% |
| Bm7 | 2 | 7.1% |
| Em7 | 2 | 7.1% |
| Dmaj7 | 2 | 7.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 4 |
| F7 -> Bbmaj7 | Resolution (Major) | 2 |
| Em7 -> A7 | Setup (Major Key) | 2 |
| A7 -> Dmaj7 | Resolution (Major) | 2 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| Dbm7 -> Gb7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Rapid, non-diatonic modulations are a core feature, moving through ii-V-I progressions in Bb, Db, C, and Cb major, frequently disrupting the D major tonic.
- The piece demonstrates extensive use of temporary key centers, creating harmonic ambiguity rather than a strong diatonic pull to D major.
- Juxtaposition of traditional D major harmony (F#m7-Bm7-Em7-A7-Dmaj7) with distant flat-key ii-V cycles (e.g., Cm7-F7, Ebm7-Ab7, Dbm7-Gb7) drives the progression.
Improvisation Focus: Navigating rapid, context-specific chord-scale relationships across multiple temporary key centers.
Difficulty Rating: 5 (Advanced) – The frequent and distant modulations demand highly sophisticated harmonic understanding and agile execution.