Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dbmaj7 | 11 | 12.2% |
| D7#11 | 10 | 11.1% |
| Fm6 | 6 | 6.7% |
| B7 | 5 | 5.6% |
| Ab7 | 5 | 5.6% |
| Db6 | 4 | 4.4% |
| Fm7 | 4 | 4.4% |
| C7 | 4 | 4.4% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| F#m7 -> B7 | Setup (Major Key) | 3 |
| Ab7 -> Dbmaj7 | Resolution (Major) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Gm7b5 -> C7 | Setup (Minor Key) | 1 |
| C7 -> Fm6 | Resolution (Minor) | 1 |
| B7 -> Emaj7 | Resolution (Major) | 1 |
| C7 -> Fmaj7 | Resolution (Major) | 1 |
| Abmaj7 -> Eb7b9 | Setup (Major Key) | 1 |
| Eb7b9 -> Abmaj7 | Resolution (Major) | 1 |
| Em7 -> A7 | Setup (Major Key) | 1 |
| A7 -> Dmaj7 | Resolution (Major) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| G7 -> Cmaj7 | Resolution (Major) | 1 |
| Dbmaj7 -> Gb7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- The opening features a distinctive bVII9 (B9) functioning as a non-functional chromatic passing chord, repeatedly returning to the Dbmaj7 tonic.
- A hallmark ascending sequence of parallel minor 7th chords (Ebm7, Fm7, Gbm7, Abm7) creates a unique sense of harmonic motion.
- A pivotal modulation occurs from Db major to F minor, executed by a tritone substitution (D13#11 for G7, V of C), followed by an explicit ii-V-i progression in F minor (Gm7b5, C7, Fm6).
Improvisation Focus: Navigating frequent modulations and utilizing altered dominant scales for tritone substitutions.
Difficulty Rating: 5 (Advanced) Frequent modulations, non-functional chromaticism, and numerous altered dominants make the harmonic navigation exceptionally challenging.