Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| C7 | 4 | 20.0% |
| Bm7 | 4 | 20.0% |
| E7 | 4 | 20.0% |
| D6 | 2 | 10.0% |
| Dmaj7 | 2 | 10.0% |
| A7 | 2 | 10.0% |
| Gm7 | 1 | 5.0% |
| Em7 | 1 | 5.0% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bm7 -> E7 | Setup (Major Key) | 4 |
| E7 -> Bm7 | Resolution (Minor) | 2 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| Em7 -> A7 | Setup (Major Key) | 1 |
| A7 -> Dmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- The prominent bVII7 (C7) chord acts as a borrowed dominant, often preceding other dominant structures or the tonic, introducing a distinctive bluesy quality to the D major key center.
- An extended
Bm7 E7sequence functions as a prolonged II-V to A major (V of D), generating tension that often resolves or redirects before reaching the tonic. - A concise
Gm7 C7(II-V to bIII) provides a brief, colorful modulation to F major, injecting harmonic surprise before returning to the D major tonality.
Improvisation Focus: Mixolydian modes and their altered variants for navigating diverse dominant chord functions.
Difficulty Rating: 4 (Advanced Intermediate). The frequent non-diatonic dominant chords and temporary modulations require precise harmonic understanding and melodic navigation.