Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ebm7 | 6 | 17.1% |
| Dbmaj7 | 4 | 11.4% |
| Bb7 | 4 | 11.4% |
| Ab7 | 4 | 11.4% |
| Fm7 | 3 | 8.6% |
| Gb7#11 | 2 | 5.7% |
| F7b9 | 2 | 5.7% |
| Bbm7 | 2 | 5.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bb7 -> Ebm7 | Resolution (Minor) | 4 |
| Ebm7 -> Ab7 | Setup (Major Key) | 4 |
| Dbmaj7 -> Gb7#11 | Setup (Major Key) | 2 |
| Ab7 -> Dbmaj7 | Resolution (Major) | 2 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| Db7#5 -> Gbmaj7 | Resolution (Major) | 1 |
| F#m7 -> B7 | Setup (Major Key) | 1 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Ebm7 -> Bb7 | Setup (Major Key) | 1 |
Harmonic Highlights
- Prominent use of secondary dominants (e.g., F7b9 leading to Bbm7 via Bb7) to tonicize diatonic chords, expanding beyond simple ii-V-I.
- The Gb7#11 (IV7#11) chord injects a sophisticated Lydian dominant color, delaying direct resolution to the tonic.
- Features a brief tonicization of Fm (iii minor) through a ii-V progression (Gm7-C7), characteristic of its complex bridge sections.
Improvisation Focus Navigating ii-V-I changes across multiple temporary key centers, especially incorporating altered scales on dominant chords.
Difficulty Rating: 4 (Advanced Intermediate) - The frequent modulations and altered dominant chords require a sophisticated understanding of melodic and harmonic substitutions.