Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 7 | 16.3% |
| D7 | 7 | 16.3% |
| Gmaj7 | 5 | 11.6% |
| Bm7 | 5 | 11.6% |
| E7 | 3 | 7.0% |
| Em7 | 2 | 4.7% |
| A7 | 2 | 4.7% |
| Cmaj7 | 2 | 4.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 5 |
| D7 -> Gmaj7 | Resolution (Major) | 5 |
| Bm7 -> E7 | Setup (Major Key) | 3 |
| Em7 -> A7 | Setup (Major Key) | 2 |
| Am7 -> D7sus | Setup (Major Key) | 2 |
| Bm7b5 -> E7b9 | Setup (Minor Key) | 2 |
| E7 -> Am7 | Resolution (Minor) | 2 |
| E7b9 -> Am7 | Resolution (Minor) | 1 |
| E7 -> Amaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- Frequent use of II-V-I progressions in G major, notably Am7-D7-Gmaj7, establishing a strong tonic.
- The Bb07 chord functions as a chromatic diminished passing chord, creating tension before resolving to Am7.
- Inclusion of a minor ii-V-i progression (Bm7b5-E7b9-Am7) providing a momentary tonicization of A minor.
- Classic III-VI-II-V progression (Bm7-E7-Am7-D7) reinforces harmonic movement through the cycle of fifths.
Improvisation Focus: G Major scale and its associated modes (Dorian over minor ii, Mixolydian over V7) for navigating the dominant II-V-I structures.
Difficulty Rating: 3 (Intermediate) - The presence of standard II-V-I changes is balanced by chromatic diminished chords and minor ii-V progressions, requiring moderate harmonic awareness.