Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 3 | 18.8% |
| D7 | 3 | 18.8% |
| Gmaj7 | 2 | 12.5% |
| Em7 | 2 | 12.5% |
| G | 1 | 6.2% |
| G7/B | 1 | 6.2% |
| C | 1 | 6.2% |
| C#07 | 1 | 6.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 3 |
| D7 -> Gmaj7 | Resolution (Major) | 1 |
| E7 -> Am7 | Resolution (Minor) | 1 |
Harmonic Highlights
- The core progression heavily features a foundational ii-V-I (Em7-Am7-D7-Gmaj7) in G major, establishing a strong tonal center.
- A distinct chromatic line emerges with G7/B moving to C, followed by a C#07 (sharp-four diminished), creating significant tension and a common passing diminished function.
- The secondary dominant E7 (V7/ii) is prominently used to intensify the approach and resolution to the Am7 chord within the progression.
Improvisation Focus G Major scale and its associated diatonic modes (Dorian for minor, Mixolydian for dominants) to outline the functional harmony.
Difficulty Rating 3 (Intermediate). It blends common diatonic ii-V-I progressions with effective chromatic passing chords and secondary dominants.