Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Em7 | 8 | 13.1% |
| G7 | 4 | 6.6% |
| F#m7 | 4 | 6.6% |
| Dm7 | 3 | 4.9% |
| B7b9 | 3 | 4.9% |
| A7 | 3 | 4.9% |
| Cmaj7 | 2 | 3.3% |
| Am7 | 2 | 3.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7 -> G7 | Setup (Major Key) | 3 |
| F#m7 -> B7b9 | Setup (Major Key) | 3 |
| Em7 -> A7 | Setup (Major Key) | 3 |
| G7 -> Cmaj7 | Resolution (Major) | 2 |
| C#m7 -> F#7#9 | Setup (Major Key) | 2 |
| F#7#9 -> Bmaj7 | Resolution (Major) | 2 |
| Em7 -> A7b9#5 | Setup (Major Key) | 2 |
| B7b9 -> Em7 | Resolution (Minor) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Fm7 -> Bb7b9 | Setup (Major Key) | 1 |
| Bb7b9 -> Ebmaj7 | Resolution (Major) | 1 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| Ab7 -> Dbmaj7 | Resolution (Major) | 1 |
| Ebm7 -> Ab7b9 | Setup (Major Key) | 1 |
| Ab7b9 -> Dbmaj7 | Resolution (Major) | 1 |
| A7 -> Dm7 | Resolution (Minor) | 1 |
| A7 -> Dmaj7 | Resolution (Major) | 1 |
| Em7 -> A7#9 | Setup (Major Key) | 1 |
| G7 -> Cmaj9 | Resolution (Major) | 1 |
Harmonic Highlights:
- Frequent tonicizations and modulations via strong ii-V-I progressions (e.g., Dm7-G7-Cmaj7, Fm7-Bb7-Ebmaj7).
- Chromatic modulations, like the abrupt shift from Am7 to the ii-V-I of B major (C#m7-F#7#9-Bmaj7).
- Extensive use of altered dominant chords (e.g., F#7#9, A7b9#5, B7b9) to build tension and propel harmonic movement.
- Rapid key center shifts, exemplified by the swift succession of ii-V-I in Eb major (Fm7-Bb7-Ebmaj7) followed by ii-V to Db major (Ebm7-Ab7).
Improvisation Focus: Navigating ii-V-I progressions across multiple, often chromatically related, key centers.
Difficulty Rating: 5 (Advanced). The rapid, often non-diatonic modulations and prevalent altered dominant chords demand sophisticated harmonic awareness.