Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| F13 | 5 | 11.6% |
| Eb13 | 3 | 7.0% |
| Bb7 | 3 | 7.0% |
| Dm7 | 3 | 7.0% |
| Gm7 | 3 | 7.0% |
| C7 | 3 | 7.0% |
| Fmaj7 | 2 | 4.7% |
| Em7b5 | 2 | 4.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Gm7 -> C7 | Setup (Major Key) | 3 |
| Fmaj7 -> Bb7 | Setup (Major Key) | 2 |
| Em7b5 -> A7 | Setup (Minor Key) | 2 |
| A7 -> Dm7 | Resolution (Minor) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
| Abm7 -> Db7 | Setup (Major Key) | 1 |
| Db7 -> Gbmaj7 | Resolution (Major) | 1 |
| C7 -> Fmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- The prominent F13 - Eb13 alternation establishes a strong “tonic-bVII7” relationship, creating a distinctive bluesy yet modern harmonic tension against the F major key center.
- Features a classic ii-V-i progression (Em7b5 - A7 - Dm7) briefly tonicizing D minor, the relative minor, before moving to new harmonic territories.
- Incorporates a tritone substitution (Ab7 for D7) and secondary dominants (G7 leading to C7) within a series of V7 chords cycling back to the tonic.
- The concluding Eb6-E6-F6 chromatic ascent provides a powerful, tension-releasing movement leading definitively to the F major tonic.
Improvisation Focus: Navigating dominant 7th arpeggios and their appropriate Mixolydian/altered scales across frequent, often non-diatonic, dominant chord changes.
Difficulty Rating: 4 (Advanced Intermediate) Its rapid harmonic rhythm, frequent dominant substitutions, and modulations demand strong chord-scale knowledge and technical fluidity.