Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ab7 | 8 | 66.7% |
| Db7 | 3 | 25.0% |
| D7 | 1 | 8.3% |
No obvious ii-V patterns detected.
Harmonic Highlights:
- Prominent use of Ab7 (V7/IV) and Db7 (IV7) creates a blues-inflected subdominant-dominant core within the C# major key.
- Consistent resolution from Ab7 to Db7 establishes a recurring blues progression, emphasizing the IV chord area.
- The D7 chord acts as a chromatic dominant, introducing a sharp, half-step dissonance and strong blues inflection.
Improvisation Focus: Mixolydian scale, adapted to follow the functional and chromatic dominant 7th chords.
Difficulty Rating: 4 (Advanced) – The use of a less common key center (C#) combined with specific chromatic movements like D7 demands high instrumental proficiency and theoretical understanding.