Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb6 | 5 | 18.5% |
| F7 | 4 | 14.8% |
| Cm7 | 3 | 11.1% |
| Eb7 | 2 | 7.4% |
| Gb7 | 2 | 7.4% |
| Dm7 | 2 | 7.4% |
| G7 | 2 | 7.4% |
| Ebmaj7 | 2 | 7.4% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 3 |
| Dm7 -> G7 | Setup (Major Key) | 2 |
| G7 -> Cm7 | Resolution (Minor) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression utilizes a bVI7 (Gb7) as a chromatic passing chord or tritone substitution for the V/V, creating a distinctive bebop “side-slip” feel.
- Secondary dominant sequences (C7 to F7) establish a strong V/V to V motion, typically resolving back to the tonic Bb6.
- Standard ii-V-I cells (Fm7-Bb7-Ebmaj7) effectively tonicize the subdominant, a hallmark of 32-bar AABA or extended blues structures.
- The use of a iii-VI-ii-V turnaround (Dm7-G7-Cm7-F7) maintains high harmonic density and rhythmic forward motion.
Improvisation Focus Developing fluid bebop lines that emphasize guide-tone transitions over rapid ii-V-I turnarounds and chromatic substitutions.
Difficulty Rating 3/5. While the harmonic foundation is functional Bb major, the chromatic substitutions and fast bebop tempo require precise linear navigation and technical agility.