Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| F7 | 9 | 17.0% |
| Cm7 | 6 | 11.3% |
| C7 | 5 | 9.4% |
| Bbmaj7 | 4 | 7.5% |
| Bb6 | 3 | 5.7% |
| Db07 | 3 | 5.7% |
| Cm6 | 3 | 5.7% |
| Dm7b5 | 3 | 5.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm6 -> F7 | Setup (Major Key) | 3 |
| Dm7b5 -> G7b13 | Setup (Minor Key) | 3 |
| G7b13 -> Cm7 | Resolution (Minor) | 3 |
| Cm7 -> G7 | Setup (Major Key) | 3 |
| F7 -> Bbmaj7 | Resolution (Major) | 3 |
| Cm7 -> F7 | Setup (Major Key) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Gm7 -> C7 | Setup (Major Key) | 2 |
| Bb7 -> Fm7 | Resolution (Minor) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
| C7 -> Gm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- The Db07 functions as a bII°7, acting as a chromatic passing diminished or a substitute dominant leading to Cm6.
- The Dm7b5 - G7b13 progression creates a strong iiø7-V7alt sound, temporarily tonicizing C minor before returning to the home key.
- A sequence of dominant chords (G7, C7, F7) employs both altered (G7b13) and secondary dominant (C7 as V/F) functions to propel towards Bbmaj7.
Improvisation Focus: Altered scale concepts over the V7b13 and diminished chords.
Difficulty Rating: 3 (Intermediate). It demands facility with altered dominants and diminished chord voicings within ii-V progressions.