Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| F7 | 7 | 14.6% |
| Cm7 | 6 | 12.5% |
| Bbmaj7 | 4 | 8.3% |
| Dm7 | 4 | 8.3% |
| G7 | 3 | 6.2% |
| Dmaj7 | 3 | 6.2% |
| A7 | 3 | 6.2% |
| Eb7 | 2 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 6 |
| F7 -> Bbmaj7 | Resolution (Major) | 4 |
| Dm7 -> G7 | Setup (Major Key) | 3 |
| Bbmaj7 -> Eb7 | Setup (Major Key) | 2 |
| G7 -> Cm7 | Resolution (Minor) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 2 |
| Em7 -> A7 | Setup (Major Key) | 2 |
| A7 -> Dmaj7 | Resolution (Major) | 2 |
| G7 -> Dmaj7 | Resolution (Major) | 1 |
| F7 -> Cm7 | Resolution (Minor) | 1 |
| Ebmaj7 -> Ab7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Frequent use of ii-V-I progressions establishes the primary tonality of Bb major (
Cm7 F7 Bbmaj7). - A clear modulation to the subdominant key of Eb major is presented through
Fm7 Bb7 Ebmaj7. - Temporary tonicization of the supertonic minor (C minor) occurs via its ii-V progression (
Dm7 G7). - Features a dramatic, non-diatonic modulation to D major (the raised mediant, #IImaj7) using its ii-V-I progression (
Bm7 Em7 A7 Dmaj7).
Improvisation Focus: Navigating the frequent shifts in key centers and temporary tonicizations.
Difficulty Rating: 4 (Advanced Intermediate) - The numerous and often non-diatonic key changes require sophisticated harmonic awareness and fluid scale/arpeggio application.