Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| A7 | 7 | 30.4% |
| Bb7 | 6 | 26.1% |
| Dm6 | 4 | 17.4% |
| Bm7b5 | 4 | 17.4% |
| Gm7 | 2 | 8.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| A7 -> Dm6 | Resolution (Minor) | 3 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression features a signature minor walkdown (i – viø7 – bVI7 – V7), creating a chromatic-leaning descending bass line from D to A.
- The use of Dm6 (i) rather than Dm7 establishes a sophisticated Melodic Minor tonality, avoiding the “pop” sound of a minor seventh.
- The Bb7 acts as a bVI7 dominant, serving as a functional substitute for a subdominant or a tritone substitution of the II chord (E7), leading strongly to the A7 (V).
- The structure follows a 12-bar minor blues variation, utilizing Gm7 as the iv chord to provide a standard subdominant release before returning to the turnaround.
Improvisation Focus The D Minor Blues scale, specifically incorporating the F# (Major 3rd) over the A7 chord to outline the D Harmonic Minor sound.
Difficulty Rating 2/5: The repetitive nature and clear minor key center are beginner-friendly, though the rapid two-beat chord changes require disciplined voice leading.