Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ebmaj7 | 4 | 10.8% |
| Bbm7 | 4 | 10.8% |
| Dbmaj7 | 4 | 10.8% |
| Bb7 | 4 | 10.8% |
| Ebm7 | 3 | 8.1% |
| Ab7 | 3 | 8.1% |
| Bbm6 | 2 | 5.4% |
| B7 | 2 | 5.4% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Ebm7 -> Ab7 | Setup (Major Key) | 3 |
| Ab7 -> Dbmaj7 | Resolution (Major) | 3 |
| Gm7b5 -> C7b9 | Setup (Minor Key) | 2 |
| Dbmaj7 -> Gb7 | Setup (Major Key) | 1 |
| Cm7b5 -> F7b13 | Setup (Minor Key) | 1 |
| F7b13 -> Bbm6 | Resolution (Minor) | 1 |
| Bb7 -> Ebm7 | Resolution (Minor) | 1 |
| Bb7 -> Ebm6 | Resolution (Minor) | 1 |
| C7b9 -> Gm7b5 | Resolution (Minor) | 1 |
| F#m7 -> B7 | Setup (Major Key) | 1 |
| Fm7b5 -> Bb7 | Setup (Minor Key) | 1 |
Harmonic Highlights:
- The opening Ebmaj7 (IVM7) resolving to Bbm7 creates an immediate modal mixture, borrowing from Bb Major to add a distinctive color to the minor tonic.
- A clear ii-V-I progression (Ebm7 - Ab7 - Dbmaj7) provides a strong modulation to Db Major, the relative major, offering a harmonic respite from the minor key.
- The classic Cm7b5 - F7b13 - Bbm6 sequence firmly establishes the minor tonic, utilizing a half-diminished ii chord and an altered dominant for rich tension and release.
- The Bb7 chord serves as a strong secondary dominant, likely leading to an Eb chord (V7/IV or V7/iv), demonstrating typical jazz reharmonization techniques.
Improvisation Focus: Bb melodic minor scale.
Difficulty Rating: 4 (Advanced) The intricate blend of modal interchange, relative major modulations, and altered dominants requires a sophisticated understanding of jazz harmony.