Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Eb/Bb | 6 | 10.7% |
| Ab/Bb | 5 | 8.9% |
| D | 4 | 7.1% |
| Db/B | 3 | 5.4% |
| Ebm7 | 3 | 5.4% |
| G | 2 | 3.6% |
| D/F# | 2 | 3.6% |
| Em | 2 | 3.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Em -> A7 | Setup (Major Key) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| Em -> A7sus | Setup (Major Key) | 1 |
| C#m7 -> F#7 | Setup (Major Key) | 1 |
| Fm7b5 -> Bb7#5 | Setup (Minor Key) | 1 |
| Bb7#5 -> Ebmaj7 | Resolution (Major) | 1 |
| Am7b5 -> D7 | Setup (Minor Key) | 1 |
Harmonic Highlights:
- Immediate, strong tonicization of G major (bVII) through diatonic ii-V-I patterns (Am7-D7-G), moving significantly away from the stated Ab major key center.
- Application of altered dominants (e.g., Bb13b9) resolving to minor chords (Ebm7, the iv of Ab), indicating a functional yet chromatically enriched approach.
- Inclusion of highly chromatic and possibly non-functional chords like Db/B (C#/B) that disrupt diatonic expectations and add considerable tension.
Improvisation Focus: Chord-scale improvisation to navigate the frequent and abrupt key center shifts.
Difficulty Rating: 5 (Advanced) Frequent, non-diatonic modulations and complex altered dominant chords demand high harmonic sophistication and quick adaptation from improvisers.