Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| A7b9 | 8 | 26.7% |
| Dm7 | 8 | 26.7% |
| Gm7 | 4 | 13.3% |
| E7 | 2 | 6.7% |
| A7b13 | 2 | 6.7% |
| D7b13 | 2 | 6.7% |
| Em7b5 | 1 | 3.3% |
| A7#9 | 1 | 3.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| A7b9 -> Dm7 | Resolution (Minor) | 7 |
| Dm7 -> A7b9 | Setup (Major Key) | 2 |
| Em7b5 -> A7#9 | Setup (Minor Key) | 1 |
| A7#9 -> Dm7 | Resolution (Minor) | 1 |
| D7b13 -> Gm7 | Resolution (Minor) | 1 |
| A7b9 -> Dm | Resolution (Minor) | 1 |
Harmonic Highlights:
- Frequent ii-V-i progressions in D minor, often featuring complex altered dominant extensions (b9, #9, b13).
- Strategic use of secondary dominants, notably E7/E7#9 (V/V), creating strong pulls to the A7 dominant.
- The D7b13 functions as a potent V/ii, driving the harmony from the implied tonic towards the subdominant (Gm7).
Improvisation Focus: Altered Scale (Super Locrian) for navigating dominant chord tensions.
Difficulty Rating: 4 (Advanced). The rapid tempo, numerous altered dominants, and quick harmonic rhythm require sophisticated melodic and harmonic vocabulary.