Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| A7 | 10 | 17.5% |
| Em7 | 10 | 17.5% |
| Gmaj7 | 5 | 8.8% |
| E7 | 5 | 8.8% |
| D7 | 4 | 7.0% |
| D7#5 | 3 | 5.3% |
| F7 | 3 | 5.3% |
| B7b9 | 3 | 5.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| A7 -> Em7 | Resolution (Minor) | 7 |
| Em7 -> A7 | Setup (Major Key) | 7 |
| D7#5 -> Gmaj7 | Resolution (Major) | 3 |
| B7b9 -> Em7 | Resolution (Minor) | 3 |
| Gmaj7 -> D7#5 | Setup (Major Key) | 2 |
| E7 -> Bm7 | Resolution (Minor) | 2 |
| Bm7 -> E7 | Setup (Major Key) | 2 |
| Am7 -> D7 | Setup (Major Key) | 2 |
| F#m7b5 -> B7b9 | Setup (Minor Key) | 1 |
| Em7 -> B7b9 | Setup (Major Key) | 1 |
| A7 -> Dm7 | Resolution (Minor) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| G7 -> Cmaj7 | Resolution (Major) | 1 |
| Cmaj7 -> F7 | Setup (Major Key) | 1 |
| E7 -> Am7 | Resolution (Minor) | 1 |
Harmonic Highlights
- Frequent secondary dominants and extended ii-V cycles (e.g., repeated
Em7-A7leading toD7), building significant tension. - Chromatic descending dominant motion (
F7toE7) creates unexpected shifts, often setting up further secondary dominants. - Altered dominants (
D7#5,B7b9) introduce non-diatonic color and strong resolutions, particularly theF#m7b5 - B7b9 - Em7progression temporarily tonicizing the relative minor.
Improvisation Focus Dominant 7th scales (Mixolydian, altered) and arpeggios over ii-V progressions.
Difficulty Rating 4 - Intermediate-Advanced. The frequent secondary dominants, altered chords, and quick harmonic rhythm demand precise navigation beyond simple diatonic improvisation.