Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Gmaj7 | 5 | 14.7% |
| Am7 | 5 | 14.7% |
| D7 | 4 | 11.8% |
| C7 | 3 | 8.8% |
| Bbmaj7 | 3 | 8.8% |
| Bm7 | 2 | 5.9% |
| Gm7 | 2 | 5.9% |
| Cm7 | 2 | 5.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7 -> D7 | Setup (Major Key) | 4 |
| C7 -> Gm7 | Resolution (Minor) | 2 |
| Gm7 -> C7 | Setup (Major Key) | 2 |
| D7 -> Gmaj7 | Resolution (Major) | 2 |
| Bm7 -> E7b9 | Setup (Major Key) | 1 |
| E7b9 -> Am7 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F7 -> Bbmaj7 | Resolution (Major) | 1 |
| Cm7 -> F7alt | Setup (Major Key) | 1 |
| F7alt -> Bbmaj7 | Resolution (Major) | 1 |
| F#m7 -> B7 | Setup (Major Key) | 1 |
| B7 -> Emaj7 | Resolution (Major) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression opens with a diatonic stepwise ascent (Imaj7–ii7–iii7–IV7), immediately establishing a strong G major tonal center.
- A sudden shift to Gm7–C7 introduces modal interchange from the parallel minor, functioning as a ii–V sequence that briefly suggests the key of F major.
- The structure features a modulation to the relative bIII (Bb major) via a Cm7–F7–Bbmaj7 ii–V–I cadence, common in mid-century bop compositions.
- Frequent use of secondary dominants, such as E7b9 leading to Am7, provides harmonic tension and chromatic voice leading back to the primary ii–V–I.
Improvisation Focus Fluent navigation of ii–V–I patterns across shifting tonal centers (G and Bb major).
Difficulty Rating 3/5: The tune requires intermediate-level proficiency to navigate the rapid modulations and modal shifts between the parallel major and minor keys.
📚 Standard Available in:
The Real Book - Volume II
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