Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7 | 6 | 15.8% |
| G7 | 6 | 15.8% |
| Am7 | 4 | 10.5% |
| Cmaj7 | 4 | 10.5% |
| Bm7b5 | 4 | 10.5% |
| E7b9 | 4 | 10.5% |
| A7 | 4 | 10.5% |
| Fmaj7 | 2 | 5.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7 -> G7 | Setup (Major Key) | 6 |
| G7 -> Cmaj7 | Resolution (Major) | 4 |
| Bm7b5 -> E7b9 | Setup (Minor Key) | 4 |
| A7 -> Dm7 | Resolution (Minor) | 4 |
| E7b9 -> Am7 | Resolution (Minor) | 3 |
| Em7 -> A7 | Setup (Major Key) | 2 |
| Cmaj7 -> F7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- The recurring i-iv-VII7-IIImaj7 progression (Am7-Dm7-G7-Cmaj7) strongly tonicizes the relative major, creating a sense of release and forward motion.
- Frequent use of secondary dominants, notably A7 (V7/iv) leading to Dm7, introduces chromaticism and propels the harmonic rhythm.
- The prominent Bm7b5-E7b9 resolving to Am7 establishes a strong minor ii-V-i cadence, firmly re-anchoring the minor tonic with altered dominant tension.
Improvisation Focus: Navigating the A Natural Minor scale while also adapting to the C Major scale during relative major tonicizations.
Difficulty Rating: 3 (Intermediate) – It features functional harmony with secondary dominants and a clear minor ii-V-i, requiring awareness of key center shifts and altered dominant applications.