Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Cm7 | 7 | 23.3% |
| Dm7b5 | 5 | 16.7% |
| G7b9 | 3 | 10.0% |
| G7#9 | 2 | 6.7% |
| Fm7 | 2 | 6.7% |
| Ebmaj7 | 2 | 6.7% |
| F9 | 1 | 3.3% |
| Bb13 | 1 | 3.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7b5 -> G7b9 | Setup (Minor Key) | 3 |
| G7b9 -> Cm7 | Resolution (Minor) | 3 |
| Dm7b5 -> G7#9 | Setup (Minor Key) | 1 |
| G7#9 -> Cm7 | Resolution (Minor) | 1 |
| Cm7 -> G7b13 | Setup (Major Key) | 1 |
| G7b13 -> Cm7 | Resolution (Minor) | 1 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression utilizes a standard minor ii-V-i (Dm7b5 - G7#9 - Cm7) to establish a somber C minor tonality, common in hard-bop and soul-jazz.
- A lengthy sequence of dominant chords (F9 - Bb13 - Eb7#9 - Ab13 - Db7#9) creates a descending cycle of fifths that temporarily moves toward the relative major (Eb) before returning to the tonic.
- The use of altered extensions like #9 and b13 on the G7 and Db7 chords provides the “bluesy” tension essential to the Nat Adderley sound.
- The Db7#9 serves as a tritone substitute (subV) for G7, facilitating a smooth chromatic resolution back to the Cm7 tonic.
Improvisation Focus C Minor Blues scale, integrated with the C Altered scale over G7 and Db7 chords.
Difficulty Rating 3/5. While the minor blues framework is accessible, the rapid succession of dominant chords and altered tensions requires intermediate knowledge of voice leading.