Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb6 | 8 | 22.2% |
| Cm7 | 5 | 13.9% |
| Eb7 | 4 | 11.1% |
| Gm7 | 3 | 8.3% |
| Ebm7 | 2 | 5.6% |
| Ab7 | 2 | 5.6% |
| F7 | 2 | 5.6% |
| Fm7 | 2 | 5.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Ebm7 -> Ab7 | Setup (Major Key) | 2 |
| Cm7 -> F7 | Setup (Major Key) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Abm7 -> Db7 | Setup (Major Key) | 2 |
| Bb7 -> Fm7 | Resolution (Minor) | 1 |
| Db7 -> Abm7 | Resolution (Minor) | 1 |
| F#m7 -> B7 | Setup (Major Key) | 1 |
- The tonic Ebmaj7 is frequently replaced by Eb7 (I7), creating a blues-inflected, dominant-quality tonic, often resolving V-I7-V (Bb6-Eb7-Bb6).
- Numerous ii-V progressions target both diatonic (Cm7-F7 to Bb, the V) and non-diatonic keys (Ebm7-Ab7 to Db, Abm7-Db7 to Gb), introducing extensive chromaticism.
- The non-diatonic ii-V cycles (Ebm7-Ab7, Abm7-Db7) function as sophisticated temporary modulations or backdoor dominant approaches, adding harmonic richness beyond simple diatonicism.
Improvisation Focus: Fluidly navigating diverse ii-V progressions, including those targeting non-diatonic key centers, utilizing appropriate scales and arpeggios.
Difficulty Rating: 4 (Intermediate-Advanced). The rapid succession of harmonically sophisticated ii-V progressions and the blues-infused I7 demand a high level of harmonic fluency and improvisation skill.