Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| F13 | 5 | 10.6% |
| Bb69 | 3 | 6.4% |
| G13 | 3 | 6.4% |
| G7#9 | 2 | 4.3% |
| Cm9 | 2 | 4.3% |
| Bbmaj7 | 2 | 4.3% |
| Db9 | 2 | 4.3% |
| Gbmaj7 | 2 | 4.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| G7#9 -> Cm9 | Resolution (Minor) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| G7#5 -> Cm9 | Resolution (Minor) | 1 |
| Dm7 -> G7#9 | Setup (Major Key) | 1 |
| G7#9 -> Cm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- The progression Bbmaj7 (I) → Db9 (bIII7) → Gbmaj7 (bVImaj7) showcases chromatic mediant movement and Coltrane-esque harmony.
- A clear tritone substitution occurs with Bb9 (I7) → E13 (bV7) → Eb69 (bIVmaj7), creating significant tonal shifts.
- Frequent use of altered dominants, like G7#9, and repetitive half-step dominant oscillations (Ab13 → G13) generate substantial harmonic tension.
Improvisation Focus: Navigating the rapid, non-diatonic changes and altered dominants with various altered scales (e.g., Altered Scale, Lydian Dominant) is crucial.
Difficulty Rating: 5 (Advanced). The frequent modulations, tritone substitutions, and chromaticism demand a high level of harmonic knowledge and improvisational agility.