Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| A7 | 8 | 11.9% |
| Ab7 | 8 | 11.9% |
| F7 | 7 | 10.4% |
| Bb7 | 7 | 10.4% |
| G7 | 6 | 9.0% |
| Gb7 | 6 | 9.0% |
| Db7 | 4 | 6.0% |
| Eb7 | 4 | 6.0% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bbm7 -> Eb7 | Setup (Major Key) | 3 |
| Eb7 -> Bbm7 | Resolution (Minor) | 2 |
| Eb7 -> Abmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- Features extensive rapid modulations driven by successions of dominant 7th chords, where each serves as the V7 of the next (e.g., D7-G7-C7-F7-Bb7).
- Employs frequent tritone substitutions (e.g., A7-Ab7, Db7-Gb7) to create chromatic voice leading, alter harmonic function, and pivot quickly between tonal centers.
- Utilizes prominent chromatic descending dominant 7th progressions (e.g., F7-E7-Eb7), generating continuous tension and harmonic movement.
- The progression consistently navigates through multiple temporary keys, often delaying or indirectly approaching the stated C# major key.
Improvisation Focus: Superimposing altered dominant scales and arpeggios across rapidly shifting chord centers.
Difficulty Rating: 5 (Advanced) – It demands exceptional harmonic agility to navigate rapid modulations, chromatic dominants, and tritone substitutions effectively.