Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Db7 | 6 | 42.9% |
| Gb7 | 3 | 21.4% |
| Ebm7 | 2 | 14.3% |
| Ab7 | 2 | 14.3% |
| Bb7 | 1 | 7.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Ebm7 -> Ab7 | Setup (Major Key) | 2 |
| Bb7 -> Ebm7 | Resolution (Minor) | 1 |
Harmonic Highlights
- Utilizes a classic 12-bar blues structure in Db major, relying on dominant 7th chords for the I (Db7) and IV (Gb7) functions to establish a traditional swing feel.
- Employs a “quick change” to the IV chord (Gb7) in measure 2, adding immediate harmonic variety before returning to the tonic in measure 3.
- Features a sophisticated turnaround using a VI7-ii-V-I progression (Bb7–Ebm7–Ab7–Db7), utilizing secondary dominants to create strong pull toward the resolution.
Improvisation Focus The Db Blues Scale (Db-Fb-Gb-G-Ab-Cb) combined with major pentatonic “sweet” notes.
Difficulty Rating 2; the predictable 12-bar structure and standard ii-V-I movements make it an accessible entry point for learning jazz-blues vocabulary.