Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| C7 | 8 | 14.8% |
| F6 | 7 | 13.0% |
| D7 | 7 | 13.0% |
| Gm7 | 5 | 9.3% |
| Bb7 | 4 | 7.4% |
| G7 | 3 | 5.6% |
| F7 | 3 | 5.6% |
| A7 | 2 | 3.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| D7 -> Gm7 | Resolution (Minor) | 4 |
| Gm7 -> C7 | Setup (Major Key) | 4 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| G7 -> Cm7 | Resolution (Minor) | 1 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F7 -> Bbm7 | Resolution (Minor) | 1 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| Am7 -> D7 | Setup (Major Key) | 1 |
| Gm7 -> D7/A | Setup (Major Key) | 1 |
| Bm7b5 -> E7 | Setup (Minor Key) | 1 |
| E7 -> Am7b5 | Resolution (Minor) | 1 |
| Am7b5 -> D7 | Setup (Minor Key) | 1 |
| D7 -> Gm7b5 | Resolution (Minor) | 1 |
| Gm7b5 -> C7 | Setup (Minor Key) | 1 |
Harmonic Highlights:
- Extensive application of secondary dominants (A7, D7, G7) to expand harmony towards vi, ii, and V.
- Prominent tonicizations of the subdominant (Bb) via I7-IV7 and ii-V-I progressions.
- Strategic use of the Bø7 chord for chromatic tension, often functioning as a V7b9 substitute or passing diminished.
- Sequential ii-V movements (Cm7-F7, Bbm7-Eb7) indicating brief modulations to Bb and Ab.
Improvisation Focus: Targeting chord tones and guide tones across shifting dominant functions and temporary tonic centers.
Difficulty Rating: 4 (Advanced). Requires a strong grasp of secondary dominants, diminished chord resolution, and rapid key center changes beyond simple diatonic improvisation.