Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Cmaj7 | 8 | 19.5% |
| G7b9 | 5 | 12.2% |
| Am7 | 3 | 7.3% |
| D7 | 3 | 7.3% |
| G7#5 | 2 | 4.9% |
| E7#5 | 2 | 4.9% |
| Dm7 | 2 | 4.9% |
| C6 | 2 | 4.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| G7b9 -> Cmaj7 | Resolution (Major) | 5 |
| Cmaj7 -> G7b9 | Setup (Major Key) | 3 |
| Am7 -> D7 | Setup (Major Key) | 3 |
| Cmaj7 -> G7#5 | Setup (Major Key) | 2 |
| G7#5 -> Cmaj7 | Resolution (Major) | 2 |
| E7#5 -> Am7 | Resolution (Minor) | 2 |
| Dm7 -> G7b9 | Setup (Major Key) | 1 |
| D7 -> Gmaj7 | Resolution (Major) | 1 |
| Gmaj7 -> D7b9 | Setup (Major Key) | 1 |
| D7b9 -> Gm7 | Resolution (Minor) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| C7 -> Fmaj7 | Resolution (Major) | 1 |
| Fmaj7 -> C7b9 | Setup (Major Key) | 1 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Dm7b5 -> G7b9 | Setup (Minor Key) | 1 |
| A7 -> Dm7 | Resolution (Minor) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- Secondary Dominants: The Cmaj7 to E7#5 transition functions as a V/vi, driving the harmonic rhythm toward Am7 and initiating a cycle of fourths.
- Dominant Alterations: Frequent use of G7b9 and G7#5 adds chromatic tension to primary V-I resolutions, necessitating melodic focus on b13 and b9 extensions.
- Tonal Shift: The movement from D7 to Gmaj7 facilitates a brief modulation to the dominant key center (G Major), common in Porter’s standard AABA structures.
- Tonic Prolongation: The opening bars use repetitive dominant-tonic movement to solidify the C Major foundation before moving toward subdominant-functioning chords.
Improvisation Focus Guide-tone targeting over secondary dominants (E7, D7) to resolve chromatic tensions into diatonic chord tones.
Difficulty Rating 2/5: The progression relies on standard functional harmony and predictable secondary dominants, providing a transparent roadmap for intermediate improvisers.
📚 Standard Available in:
The Real Book - Volume III
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