Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb7 | 6 | 12.2% |
| Ebm7 | 5 | 10.2% |
| Abm7 | 4 | 8.2% |
| Ebmaj7 | 4 | 8.2% |
| Ab7 | 3 | 6.1% |
| Fm7 | 3 | 6.1% |
| B7 | 3 | 6.1% |
| Dbm7 | 2 | 4.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Ebm7 -> Ab7 | Setup (Major Key) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 3 |
| Bb7 -> Ebm7 | Resolution (Minor) | 3 |
| Ab7 -> Dbm7 | Resolution (Minor) | 2 |
| Dbm7 -> Gb7 | Setup (Major Key) | 2 |
| Abm7 -> Db7 | Setup (Major Key) | 2 |
| Db7 -> Gbmaj7 | Resolution (Major) | 2 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| Eb7 -> Abmaj7 | Resolution (Major) | 1 |
Harmonic Highlights
- Frequent modal shifts between Eb minor (Ebm7) and Eb major (Ebmaj7), creating a parallel key ambiguity within the primary tonic.
- Extensive use of descending minor ii-V-I progressions (e.g., Fm7-Bb7-Ebm7) and major ii-V-I cycles modulating to temporary keys (e.g., Bbm7-Eb7-Abmaj7).
- Employs non-diatonic dominant seventh chords that lead to unexpected major sevenths (e.g., Gb7 to Bmaj7, Ab7 to Dbm7), expanding harmonic color.
- Incorporates chromaticism, notably through implied tritone substitution (B7 as sub for F7) leading into a dominant chain.
Improvisation Focus Precise chord-tone outlining and scale application across rapidly changing harmonic landscapes.
Difficulty Rating 5 (Advanced) - The complex harmonic rhythm, frequent modulations, and varied chord qualities demand sophisticated improvisational agility and knowledge.