Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7 | 13 | 20.6% |
| A7#9 | 9 | 14.3% |
| F7 | 5 | 7.9% |
| Cm7 | 4 | 6.3% |
| Bb7 | 4 | 6.3% |
| G7 | 3 | 4.8% |
| F/C | 3 | 4.8% |
| Fmaj7/C | 2 | 3.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| A7#9 -> Dm7 | Resolution (Minor) | 9 |
| Cm7 -> F7 | Setup (Major Key) | 4 |
| Dm7 -> A7#9 | Setup (Major Key) | 3 |
| Dm7 -> G7 | Setup (Major Key) | 3 |
| A7/C# -> Dm7 | Resolution (Minor) | 2 |
| Bm7b5 -> E7#9 | Setup (Minor Key) | 1 |
| A7 -> Dm7 | Resolution (Minor) | 1 |
| F7 -> Bbmaj7 | Resolution (Major) | 1 |
| Bbmaj7 -> Eb7 | Setup (Major Key) | 1 |
| Em7b5 -> A7#9 | Setup (Minor Key) | 1 |
| Em7b5 -> A7 | Setup (Minor Key) | 1 |
- Frequent use of
A7#9(V7/vi) resolving toDm7, establishing a strong secondary dominant-tonic relationship within the F major key. - Prominent ii-V-I progression to the subdominant,
Cm7-F7-Bb7(ii/IV-V/IV-IV), briefly shifting harmonic focus. - Complex dominant-chain
Bm7b5-E7#9-A7#9(iiø-V to A minor, followed by V7/vi), featuring interlinked ii-V movements and altered qualities. - Abundant use of altered dominant chords (e.g.,
A7#9,E7#9) and chromatic bass lines (A7/C#) for color and heightened tension.
Improvisation Focus: Altered dominant scales and arpeggios for navigating the frequent #9 chords and temporary tonal centers.
Difficulty Rating: 4 (Advanced). The sophisticated use of altered dominants, complex secondary ii-V progressions, and rapid harmonic rhythm demands significant improvisational agility.