Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb7 | 10 | 28.6% |
| Db7 | 8 | 22.9% |
| Ab6 | 5 | 14.3% |
| Bbm7 | 3 | 8.6% |
| Eb7 | 2 | 5.7% |
| C7 | 1 | 2.9% |
| Fm7 | 1 | 2.9% |
| D7 | 1 | 2.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bbm7 -> Eb7 | Setup (Major Key) | 2 |
| C7 -> Fm7 | Resolution (Minor) | 1 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| F7 -> Bbm7 | Resolution (Minor) | 1 |
Harmonic Highlights
- The piece opens on
Db7(I7), establishing an immediate blues-dominant tonic character within C# major. - Frequent chromatic dominant approach chords are evident, such as
D7resolving down by a half-step toDb7. - A sophisticated
Ab6 - C7 - Fm7progression features a tritone substitution (C7forF7) leading to a minor chord outside the immediate diatonic context. - The descending dominant sequence
Eb7 - D7 - Db7creates significant harmonic tension and chromatic voice leading.
Improvisation Focus Mixolydian scales, especially for the numerous dominant 7 chords and chromatic approaches.
Difficulty Rating 4 (Advanced). The rapid succession of non-diatonic dominants, tritone substitutions, and chromatic resolutions requires strong ear training and advanced chord-scale application.