Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| C7 | 6 | 18.2% |
| G7 | 6 | 18.2% |
| Ab7 | 4 | 12.1% |
| F7 | 3 | 9.1% |
| Bb7 | 3 | 9.1% |
| Eb6 | 3 | 9.1% |
| Eb7 | 2 | 6.1% |
| Ab6 | 2 | 6.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| A07 -> Dm7b5 | Resolution (Minor) | 1 |
| Dm7b5 -> G7 | Setup (Minor Key) | 1 |
- Frequent use of secondary dominants (e.g., G7 to C7, F7 to Bb7) creating extended dominant cycles and V/V progressions.
- Strategic tritone substitutions (e.g., Ab7 for D7) add chromaticism and color to dominant resolutions.
- Standard V/V-V-I progressions (F7-Bb7-Eb6) provide clear harmonic anchors within dominant movement.
- The Eb7-Ab6-A07 sequence presents a V/IV resolving to the subdominant, followed by an unusual diminished chord for tension.
Improvisation Focus: Dominant 7th scales and their alterations (Mixolydian, Altered, Lydian-Dominant) are paramount.
Difficulty Rating: 4 (Advanced Intermediate) - Navigating the frequent secondary dominants, tritone substitutions, and occasional unexpected progressions requires strong harmonic understanding.