Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bbm7 | 7 | 20.6% |
| F7b9 | 3 | 8.8% |
| Bbm7/F | 2 | 5.9% |
| C7b9 | 2 | 5.9% |
| C7 | 2 | 5.9% |
| Ebm7 | 2 | 5.9% |
| Dbmaj7 | 2 | 5.9% |
| Db7/Ab | 1 | 2.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| F7b9 -> Bbm7 | Resolution (Minor) | 3 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| Bb7b9 -> Ebm7 | Resolution (Minor) | 1 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- Features a chromatic descending bass line (Bb - Ab - G - Gb) that moves through m7, dominant, and half-diminished colors, creating sophisticated tension and release.
- Employs secondary dominant chains (G7 to C7) and standard minor ii-V-I turnarounds (C7b9 - F7b9 - Bbm7) to navigate the Bb minor tonality.
- Integrates a lyrical transition to the relative major (Db major) using a IV - I - ii - I progression (Gbmaj7 - Db/F - Ebm7 - Dbmaj7), highlighting Petrucciani’s signature “Brazilian” influence.
Improvisation Focus Bb Melodic Minor
Difficulty Rating 4/5. The fast harmonic rhythm and constant chromatic substitutions demand advanced technical facility and precise voice-leading awareness.