Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Fm7 | 5 | 14.3% |
| Cm7 | 4 | 11.4% |
| Bb7 | 4 | 11.4% |
| Ebmaj7 | 2 | 5.7% |
| Bbm7 | 2 | 5.7% |
| Eb7 | 2 | 5.7% |
| Abmaj7 | 2 | 5.7% |
| Abm7 | 2 | 5.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7 -> Bb7 | Setup (Major Key) | 4 |
| Bbm7 -> Eb7 | Setup (Major Key) | 2 |
| Eb7 -> Abmaj7 | Resolution (Major) | 2 |
| Abm7 -> Db7 | Setup (Major Key) | 2 |
| Cm7 -> F7 | Setup (Major Key) | 2 |
| F7 -> Bbmaj7 | Resolution (Major) | 1 |
| Dm7b5 -> G7b9 | Setup (Minor Key) | 1 |
| G7b9 -> Cm7 | Resolution (Minor) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
| Bb7 -> Fm7 | Resolution (Minor) | 1 |
| Fm7 -> Bb7b9 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Employs a sophisticated chain of ii-V progressions, frequently modulating through related keys (e.g., ii-V to Ab, ii-V to C minor, ii-V to Bb).
- Features a chromatic ii-V (Abm7-Db7) to Gb major (bIII), adding color and temporary sub-tonicization.
- Includes non-diatonic chords like Gmaj7 which momentarily disrupt the key center before resolving into a subsequent ii-V, demanding careful harmonic navigation.
- Incorporates a classic minor iiø-V7-i progression (Dm7b5-G7b9-Cm7), adding depth and a minor key flavor within the overall Eb major context.
Improvisation Focus: Voice leading through chord tones and arpeggios across rapidly shifting ii-V contexts.
Difficulty Rating: 4 (Advanced) - due to numerous rapid key center changes, non-diatonic chords, and sophisticated harmonic substitutions.