Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| D7sus | 2 | 25.0% |
| Am7 | 2 | 25.0% |
| Dm7b5 | 1 | 12.5% |
| G7b9 | 1 | 12.5% |
| Cm7 | 1 | 12.5% |
| Cm7/Bb | 1 | 12.5% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7b5 -> G7b9 | Setup (Minor Key) | 1 |
| G7b9 -> Cm7 | Resolution (Minor) | 1 |
Harmonic Highlights
- The progression frequently employs modal mixture, notably the iiø7-V7b9-i movement (Dm7b5-G7b9-Cm7), borrowing directly from C natural minor within the C major context.
- D7sus functions as a supertonic suspended dominant, often non-resolving traditionally, adding color before moving into minor-key harmony.
- The immediate shift to Cm7 and its inversion (Cm7/Bb) reinforces a strong, albeit temporary, embrace of the parallel minor tonic.
- Alternation between borrowed minor tonalities (Cm7) and diatonic major elements (Am7) creates sophisticated harmonic tension.
Improvisation Focus Navigating the constant shifts between C Ionian and C Aeolian/Dorian is paramount, especially over the minor ii-V-i sections.
Difficulty Rating 4 (Advanced) - The frequent modal mixture and non-diatonic ii-V progressions require a sophisticated understanding of harmonic function and scale application.