Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Fm6 | 5 | 10.4% |
| Db7/F | 3 | 6.2% |
| Ab7 | 3 | 6.2% |
| Db9 | 3 | 6.2% |
| Ebm7 | 3 | 6.2% |
| A6 | 3 | 6.2% |
| Fm | 2 | 4.2% |
| Fm7 | 2 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| C7b9 -> Fm6 | Resolution (Minor) | 1 |
| Bb7 -> Ebm7 | Resolution (Minor) | 1 |
- Local Tonality Shift: The progression immediately establishes F minor (vi of Ab major), a distant but common jazz-idiomatic tonal area relative to the stated overall C# major key.
- Chromatic Dominant Chain: A rapid succession of altered dominant 7th chords (e.g., Eb7, Ab7, D7#11, G7b9b13, C7b9) drives intense harmonic tension and frequent temporary tonicizations.
- Rich Altered Extensions: The consistent presence of b9, b13, and #11 on dominant chords demands sophisticated harmonic understanding and precise melodic resolution.
Improvisation Focus: Altered Scale
Difficulty Rating: 5 (Advanced) – Rapidly shifting tonalities, extensive use of altered dominants, and complex extensions require deep harmonic knowledge and agility.