Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ebmaj7 | 4 | 13.8% |
| Bb7 | 4 | 13.8% |
| Fm7 | 3 | 10.3% |
| E07 | 2 | 6.9% |
| Em7 | 2 | 6.9% |
| Am7 | 2 | 6.9% |
| D7 | 2 | 6.9% |
| Gb07 | 2 | 6.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7 -> Bb7 | Setup (Major Key) | 3 |
| Am7 -> D7 | Setup (Major Key) | 2 |
| Bb7b9 -> Ebmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- Prominent use of the IV chord (Ebmaj7), frequently approached by its ii-V (Fm7 Bb7), establishing a strong pre-dominant emphasis.
- Signature Gershwin chromatic mediant modulation, notably the abrupt shift from Bb major to G major (Gmaj7) after initial tonal establishment.
- Extensive use of an extended dominant cycle (G7-C7-F7-Bb7) functioning as a strong turnaround, efficiently guiding the harmony back to the tonic.
Improvisation Focus: Navigating the key changes between Bb major and G major.
Difficulty Rating: 3 (Intermediate). The clear modulations and extended dominant cycles necessitate focused attention on changing tonal centers beyond simple diatonic improvisation.