Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| C7b9 | 5 | 10.6% |
| Bbmaj7 | 3 | 6.4% |
| Gm7b5 | 3 | 6.4% |
| Fmaj7 | 2 | 4.3% |
| Em7b5 | 2 | 4.3% |
| A7b9 | 2 | 4.3% |
| Dm7 | 2 | 4.3% |
| Db7 | 2 | 4.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Gm7b5 -> C7b9 | Setup (Minor Key) | 3 |
| Em7b5 -> A7b9 | Setup (Minor Key) | 2 |
| A7b9 -> Dm7 | Resolution (Minor) | 2 |
| Cm7 -> F7b9 | Setup (Major Key) | 2 |
| F7b9 -> Bbmaj7 | Resolution (Major) | 2 |
| Gm7 -> C7b9 | Setup (Major Key) | 2 |
| Bbm7 -> Eb7b9 | Setup (Major Key) | 1 |
| Eb7b9 -> Abmaj7 | Resolution (Major) | 1 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| C7b9 -> Fm7 | Resolution (Minor) | 1 |
| Dm7b5 -> G7b9 | Setup (Minor Key) | 1 |
| C7b9 -> Fmaj7 | Resolution (Major) | 1 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| D7 -> Gm7 | Resolution (Minor) | 1 |
| D7#9 -> Gm7 | Resolution (Minor) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- Frequent secondary ii-V-I progressions target the relative minor (Dm7) and the subdominant (Bbmaj7), establishing a sophisticated tonal roadmap.
- A striking modulation to the bIII (Abmaj7) via a parallel minor ii-V (Bbm7-Eb7) showcases Porter’s characteristic use of modal interchange.
- Chromatic subV7 chords, such as the Db7 (subV/ii), provide smooth melodic voice leading into the subsequent ii-V-I cycles.
Improvisation Focus Voice leading through shifting key centers by targeting guide tones (3rds and 7ths) during the frequent ii-V transitions.
Difficulty Rating 3 (Intermediate): The rapid modulations between F, Bb, and Ab major require an agile understanding of non-diatonic harmony and functional substitutions.
📚 Standard Available in:
The Real Book - Volume VI
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