Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| D | 9 | 18.0% |
| A | 6 | 12.0% |
| B7 | 5 | 10.0% |
| G | 4 | 8.0% |
| C | 3 | 6.0% |
| B | 2 | 4.0% |
| E | 2 | 4.0% |
| Ab | 2 | 4.0% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| G#7 -> C#m7 | Resolution (Minor) | 2 |
| C#m7 -> F#7 | Setup (Major Key) | 2 |
| B7 -> F#m7 | Resolution (Minor) | 1 |
| F#m7 -> B7 | Setup (Major Key) | 1 |
| D#m7 -> G#7 | Setup (Major Key) | 1 |
Harmonic Highlights
- The progression utilizes rapid cycles of fourths (B-E-A) interrupted by chromatic side-slipping (Ab-Db), creating a sense of constant forward motion.
- Frequent modal interchange pivots the harmony from the D major key center into distantly related flat-side tonalities such as Csus and F major.
- The structure relies on non-functional dominant chords and constant-structure harmony, forcing the soloist to navigate shifting tonal gravity rather than traditional functional resolutions.
Improvisation Focus Linear chromaticism and rapid chord-scale targeting.
Difficulty Rating 4/5. The high-speed changes and lack of standard ii-V-I functional cadences demand advanced harmonic agility and precise rhythmic placement.