Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Gbmaj7#11 | 5 | 27.8% |
| Bbm7 | 4 | 22.2% |
| Bbmaj7 | 2 | 11.1% |
| Gm7 | 2 | 11.1% |
| Am7b5 | 1 | 5.6% |
| D7#9 | 1 | 5.6% |
| Fm7 | 1 | 5.6% |
| Bb7 | 1 | 5.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Am7b5 -> D7#9 | Setup (Minor Key) | 1 |
| D7#9 -> Gm7 | Resolution (Minor) | 1 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| F7#5 -> Bbm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Prominent modal interchange with Bbmaj7 appearing early within the stated Bb minor key center.
- Classic ii-V-i progression (Am7b5-D7#9-Gm7) leading to the v minor.
- An extended, static Gbmaj7#11 section introduces a sustained Lydian color (bVImaj7#11) providing a strong harmonic contrast.
- Strong V7 altered resolution (F7#5) effectively re-establishes the Bbm7 tonic.
Improvisation Focus: Dynamic chord-scale navigation, particularly emphasizing Lydian and altered dominant sonorities.
Difficulty Rating: 4 (Advanced Intermediate) The blend of modal interchange, sustained Lydian harmonies, and altered dominant tensions demands sophisticated chord-scale application and harmonic awareness.