Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 9 | 25.0% |
| Bm7b5 | 5 | 13.9% |
| E7b9 | 5 | 13.9% |
| Fmaj7 | 4 | 11.1% |
| Gm7 | 2 | 5.6% |
| C7 | 2 | 5.6% |
| F#m7b5 | 1 | 2.8% |
| B7b9 | 1 | 2.8% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bm7b5 -> E7b9 | Setup (Minor Key) | 5 |
| E7b9 -> Am7 | Resolution (Minor) | 4 |
| Gm7 -> C7 | Setup (Major Key) | 2 |
| C7 -> Fmaj7 | Resolution (Major) | 2 |
| F#m7b5 -> B7b9 | Setup (Minor Key) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression centers on repeated minor ii-V-i sequences (Bm7b5 - E7b9 - Am7), defining the melancholy A minor tonality.
- A sudden ii-V (Gm7 - C7) modulates toward the IV chord (Fmaj7), offering a brief shift into a major-key feel.
- The use of F#m7b5 to B7b9 acts as a secondary ii-V, creating a temporary tonicization of the dominant area before returning to the home key.
- Harmonic movement is characterized by a strong circle-of-fifths logic, typical of Porter’s sophisticated but functional structural design.
Improvisation Focus The A Harmonic Minor scale, specifically emphasizing the G# leading tone over the E7b9 dominant chord.
Difficulty Rating 2/5. The predictable 32-bar structure and clear minor-to-major transitions make it an ideal study for foundational minor-key improvisation.
📚 Standard Available in:
The Real Book - Volume II
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