Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ebm7 | 7 | 15.2% |
| E7 | 4 | 8.7% |
| D7 | 4 | 8.7% |
| Fm7 | 4 | 8.7% |
| Bb7 | 4 | 8.7% |
| Gm7 | 3 | 6.5% |
| C7 | 3 | 6.5% |
| Gb7 | 3 | 6.5% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7 -> Bb7 | Setup (Major Key) | 4 |
| Bb7 -> Ebm7 | Resolution (Minor) | 4 |
| Gm7 -> C7 | Setup (Major Key) | 3 |
| Bm7 -> E7 | Setup (Major Key) | 2 |
| E7 -> Am7 | Resolution (Minor) | 2 |
| Am7 -> D7 | Setup (Major Key) | 2 |
| D7 -> Gm7 | Resolution (Minor) | 2 |
| C7 -> Fm7 | Resolution (Minor) | 2 |
| Dbm7 -> Gb7 | Setup (Major Key) | 1 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| Em7 -> A7 | Setup (Major Key) | 1 |
| A7 -> Dmaj7 | Resolution (Major) | 1 |
| C#7 -> F#m7 | Resolution (Minor) | 1 |
| F#m7 -> B7 | Setup (Major Key) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression features a series of descending ii-V7 sequences moving in whole steps (Bm7-E7 to Am7-D7 to Gm7-C7), creating rapid tonal shifts without traditional resolution.
- It anticipates “Coltrane Changes” by utilizing symmetrical root movement, specifically descending minor thirds and major seconds, to cycle through distant keys like Eb minor and B minor.
- The structure bypasses a stable tonic, instead functioning as a continuous chain of dominant-functioning cells that require vertical harmonic awareness.
Improvisation Focus Targeting chord tones and guide-tone lines through rapid descending ii-V sequences.
Difficulty Rating 5: The relentless tempo and constant modulation through non-diatonic keys demand advanced harmonic visualization and high-level technical facility.