Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ebmaj7 | 8 | 33.3% |
| Fm7 | 3 | 12.5% |
| Gm7 | 2 | 8.3% |
| C7b9 | 2 | 8.3% |
| Abm7 | 2 | 8.3% |
| Emaj7#11 | 2 | 8.3% |
| Ebm7 | 1 | 4.2% |
| Ab7 | 1 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Gm7 -> C7b9 | Setup (Major Key) | 2 |
| C7b9 -> Fm7 | Resolution (Minor) | 2 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| Ab7 -> Ebmaj7 | Resolution (Major) | 1 |
| Abm7 -> Db7 | Setup (Major Key) | 1 |
| Abm7 -> Db7b9 | Setup (Major Key) | 1 |
| Db7b9 -> Gbmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- Frequent use of non-diatonic ii-V progressions (Ebm7-Ab7, Abm7-Db7) that often function as “backdoor” dominants resolving to Ebmaj7.
- A striking chromatic mediant substitution occurs with Emaj7#11 (#Imaj7#11), creating a sudden, lush departure from the key center.
- The progression incorporates altered dominant chords (C7b9, Db7b9), adding significant tension and color beyond simple diatonic harmony.
Improvisation Focus: Navigating temporary tonicizations and chromatic shifts with precise chord-scale applications.
Difficulty Rating: 5 (Advanced) – Frequent non-diatonic ii-V progressions, sudden chromatic modulations, and complex altered dominants demand a sophisticated harmonic understanding and improvisation approach.