Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| C7b9sus | 20 | 71.4% |
| G7#9 | 3 | 10.7% |
| Gb7 | 2 | 7.1% |
| Cm7 | 2 | 7.1% |
| Ab7 | 1 | 3.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| G7#9 -> Cm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- An extended, static pedal point on C7b9sus establishes a deep, unresolved dominant tension, featuring both the suspended fourth and the lowered ninth for a distinct, bluesy character.
- The progression
Gb7 - G7#9 - Cm7functions as a bII7 - V7 - i in C minor, abruptly shifting the harmonic center to minor and employing a tritone substitution leading into the tonicization. - Frequent use of altered dominant chords like G7#9 and chromatic dominant movement (e.g., Ab7 to G7#9) avoids diatonic expectations, creating a highly sophisticated and unpredictable harmonic landscape.
Improvisation Focus: C Phrygian mode.
Difficulty Rating: 5 (Advanced). The extended altered dominant vamps, complex voicings, and non-diatonic resolutions demand a sophisticated harmonic understanding and advanced ear training.