Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7 | 7 | 13.5% |
| G7 | 7 | 13.5% |
| Am7 | 5 | 9.6% |
| Cmaj7 | 4 | 7.7% |
| Em7 | 4 | 7.7% |
| A7 | 4 | 7.7% |
| D7 | 3 | 5.8% |
| Bm7 | 2 | 3.8% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7 -> G7 | Setup (Major Key) | 6 |
| Em7 -> A7 | Setup (Major Key) | 3 |
| Bm7 -> E7 | Setup (Major Key) | 2 |
| Bbm7 -> Eb7 | Setup (Major Key) | 2 |
| Am7 -> D7 | Setup (Major Key) | 2 |
| Abm7 -> Db7 | Setup (Major Key) | 2 |
| A7 -> Dmaj7 | Resolution (Major) | 2 |
| A7 -> Em7 | Resolution (Minor) | 1 |
| G7 -> Dm7 | Resolution (Minor) | 1 |
| Dm7 -> G7sus | Setup (Major Key) | 1 |
| G7sus -> Cmaj7 | Resolution (Major) | 1 |
| A7#5 -> Dm7 | Resolution (Minor) | 1 |
Harmonic Highlights
- Frequent tritone substitutions, notably
Bbm7-Eb7andAbm7-Db7, introduce advanced chromaticism and remote key centers. - The progression heavily utilizes
ii-Vmovements (e.g.,Am7-D7,Em7-A7) as primary harmonic drivers, often chaining them sequentially. - Classic
iii-VImotion (Bm7-E7) creates descending cycles of fifths, preparing for newii-Vsections. - Brief, implied modulations via secondary dominants and their substitutions lead to a constantly shifting tonal center rather than a static G major.
Improvisation Focus
Navigating rapid ii-V progressions and tritone substitutions using arpeggios and guide tones.
Difficulty Rating 4 (Advanced Intermediate) due to numerous, quick-moving modulations and extensive use of chromatic substitution chords.