Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7 | 13 | 21.0% |
| G7 | 11 | 17.7% |
| Em7 | 6 | 9.7% |
| A7 | 5 | 8.1% |
| Am7 | 3 | 4.8% |
| Cmaj7 | 2 | 3.2% |
| C#07 | 2 | 3.2% |
| Eb07 | 2 | 3.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7 -> G7 | Setup (Major Key) | 11 |
| A7 -> Dm7 | Resolution (Minor) | 5 |
| Em7 -> A7 | Setup (Major Key) | 3 |
| F#m7b5 -> B7b9 | Setup (Minor Key) | 1 |
| B7b9 -> Em | Resolution (Minor) | 1 |
| Em7/D -> A7/C# | Setup (Major Key) | 1 |
| G7 -> Cmaj7 | Resolution (Major) | 1 |
| Em7b5 -> A7b9 | Setup (Minor Key) | 1 |
| A7b9 -> Dm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Standard ii-V-I progressions (Dm7-G7) firmly establish C major as the key center.
- Effective use of secondary dominants (E7 to Am7, A7 to Dm7) for temporary tonicizations.
- Chromatic passing diminished chords (C#07, Eb07) facilitate smooth voice leading, notably leading to ii (Dm7).
- Presence of inversions (Am7/C, G7/B) contributes to a fluid bass line and voice leading.
Improvisation Focus: Navigating chromatic harmony, especially outlining secondary dominants and diminished chords.
Difficulty Rating: 4 (Advanced Intermediate) The rapid harmonic rhythm, frequent secondary dominants, and passing diminished chords necessitate precise chord-scale application and chromatic understanding.