Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb7 | 5 | 16.7% |
| Fm7 | 4 | 13.3% |
| Ab7 | 4 | 13.3% |
| Eb6 | 3 | 10.0% |
| Ab7sus | 3 | 10.0% |
| F#m7 | 3 | 10.0% |
| B7 | 3 | 10.0% |
| Dm7b5 | 1 | 3.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7 -> Bb7 | Setup (Major Key) | 4 |
| F#m7 -> B7 | Setup (Major Key) | 3 |
| Dm7b5 -> G7 | Setup (Minor Key) | 1 |
| G7 -> Cm7 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| B7 -> F#m7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Dominant Prolongation: The opening “Eb6, Fm7, Bb7, Eb6” sequence prominently features and prolongs the Ab major’s dominant (Eb) through a ii-V-I progression to the dominant’s dominant (Bb7 to Eb), deferring resolution to the tonic.
- Tonicization of Related Minors: Features a ii-V-i in C minor (Dm7b5-G7-Cm7), which is the relative minor of Eb major (the V of Ab).
- Abrupt Distant Modulation: The progression shifts from Ab7 to F#m7-B7, a ii-V to E major, introducing a sudden, harmonically distant move that challenges conventional key centers.
Improvisation Focus: Pentatonic scales (major and minor) for their characteristic Tyner quartal sound and versatility over changing harmonies.
Difficulty Rating: 4 (Advanced). The rapid shifts between functional harmony and distant, abrupt modulations require strong theoretical understanding and quick melodic navigation.