Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb | 7 | 17.9% |
| F7 | 7 | 17.9% |
| G7 | 5 | 12.8% |
| Cm7 | 4 | 10.3% |
| D7 | 3 | 7.7% |
| C7 | 2 | 5.1% |
| Db07 | 2 | 5.1% |
| Bb7 | 2 | 5.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 4 |
| Dm7 -> A7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Prominent use of a descending cycle of fifths progression (e.g., D7-G7-C7-F7-Bb) employing multiple secondary dominants.
- The
Db07chord acts as a chromatic passing or substitute diminished leading effectively toCm7(ii chord). - Features a brief, explicit tonicization of D major via
A7-Dbefore quickly returning to the home key of Bb.
Improvisation Focus: Mixolydian mode application over the numerous dominant 7th chords.
Difficulty Rating: 4 (Intermediate-Advanced). Requires proficiency in navigating frequent secondary dominants, chromatic alterations, and temporary tonicizations beyond simple diatonic harmony.