Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ab6 | 8 | 25.0% |
| Db7 | 4 | 12.5% |
| E7 | 3 | 9.4% |
| Gb7#11 | 2 | 6.2% |
| B7#11 | 2 | 6.2% |
| Db6 | 2 | 6.2% |
| D6 | 2 | 6.2% |
| Eb6 | 2 | 6.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bm7 -> E7 | Setup (Major Key) | 1 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
Harmonic Highlights
- The A-section utilizes a “backdoor” IV7 to I movement (Db7 to Ab6) and Lydian dominant colors (Gb7#11), creating a sophisticated blues-inflected Ab Major framework despite the nominal G# minor notation.
- Monk employs chromatic side-slipping through a sequence of parallel major 6th chords (Db6-D6-Eb6-A6), displacing the tonal center through rapid harmonic planing.
- The bridge features a sequence of ii-V cycles (Bm7-E7, Bbm7-Eb7, Am7-D7) that moves via chromatic descents and the cycle of fourths, subverting standard functional resolutions.
Improvisation Focus Rhythmic displacement of short, angular motives within the Ab Major and Ab Blues scales.
Difficulty Rating 4/5 — The “side-slipping” parallel shifts and the bridge’s rapid, non-diatonic ii-V transitions require advanced harmonic navigation and rhythmic precision.