Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 4 | 22.2% |
| E7b9 | 4 | 22.2% |
| C7 | 3 | 16.7% |
| Fmaj7 | 3 | 16.7% |
| Bm7b5 | 3 | 16.7% |
| Bb7 | 1 | 5.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| C7 -> Fmaj7 | Resolution (Major) | 3 |
| Bm7b5 -> E7b9 | Setup (Minor Key) | 3 |
| E7b9 -> Am7 | Resolution (Minor) | 3 |
| Fmaj7 -> Bb7 | Setup (Major Key) | 1 |
| Am7 -> E7b9 | Setup (Major Key) | 1 |
Harmonic Highlights:
- The distinct Am7 (i) -> C7 (bIII7) -> Fmaj7 (bVImaj7) progression features a secondary dominant (C7 as V7/F) within the minor key, creating a characteristic soul/pop sound.
- A classic iiø7-V7b9-i (Bm7b5 - E7b9 - Am7) provides strong minor key resolution in the latter part of the form.
- The chromatic Bb7 (bII7) serves as a non-diatonic dominant, adding a bluesy or temporary modal flavor before returning to the minor ii-V-i.
Improvisation Focus: A minor pentatonic/blues scale is fundamental, allowing for soulful expression over the changing dominant qualities.
Difficulty Rating: 3 (Intermediate). The core progression is accessible, but navigating the chromatic dominants (C7, Bb7) and the V7b9 requires specific harmonic awareness for effective improvisation beyond basic scales.