Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Gm7 | 7 | 22.6% |
| F#07 | 4 | 12.9% |
| Ab07 | 3 | 9.7% |
| C7 | 3 | 9.7% |
| Fmaj7 | 2 | 6.5% |
| Cm | 2 | 6.5% |
| F7 | 2 | 6.5% |
| Bbm | 2 | 6.5% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Gm7 -> C7 | Setup (Major Key) | 3 |
| Cm -> F7 | Setup (Major Key) | 2 |
| F7 -> Bbm | Resolution (Minor) | 2 |
| Bbm -> Eb7 | Setup (Major Key) | 2 |
| C7 -> Fmaj7 | Resolution (Major) | 1 |
Harmonic Highlights
- Chromatic passing diminished chords (Ab°7 and Gb°7) create smooth, descending voice-leading between the diatonic ii, V, and I functions.
- Frequent modal interchange through the ii-V of the parallel minor (Bbm7 to Eb7) momentarily shifts the tonal center from Bb major to Bb minor.
- Secondary dominant usage (C7 as V of V) provides a classic circle-of-fifths drive toward the dominant F7, anchoring the sophisticated “Old Hollywood” harmonic structure.
Improvisation Focus Chord Tone Targeting: Prioritize the 3rds and 7ths of the chromatic and minor-mode chords to navigate the frequent shifts between major and parallel minor tonalities.
Difficulty Rating 3/5. The constant chromaticism and excursions into the parallel minor require a solid understanding of voice-leading beyond simple diatonic scales.