Chord Distribution Analysis

Chord SymbolCountFrequency
Eb6516.1%
C739.7%
Fm739.7%
Bb739.7%
Ab726.5%
Gm7b526.5%
G726.5%
Cm626.5%

Key Patterns Detected

PatternFunctionFrequency
Gm7b5 -> C7Setup (Minor Key)2
C7 -> Fm7Resolution (Minor)2
Fm7 -> Bb7Setup (Major Key)2
Am7 -> D7Setup (Major Key)1
D7 -> Gmb6Resolution (Minor)1
G7 -> Cm6Resolution (Minor)1
Cm7 -> F7Setup (Major Key)1
C7 -> Fm7b5Resolution (Minor)1
Fm7b5 -> C7Setup (Minor Key)1

Harmonic Highlights:

  • Extensive use of secondary ii-V-I progressions, such as Gm7b5-C7 to Fm and Am7-D7 to G, constantly shifting harmonic focus.
  • Prominent non-diatonic chromaticism, exemplified by the Gbm7 chord creating a surprising tension before resolving to G7 (V/Cm).
  • Recurring bluesy Ab7 (IV7) adds a soulful flavor, contrasting with the more complex diatonic and secondary dominants.

Improvisation Focus: Chord-scale theory and precise arpeggio navigation are paramount for covering the rapidly changing harmonies.

Difficulty Rating: 5 (Advanced) due to the dense harmonic rhythm, frequent modulations via secondary dominants, and unexpected chromatic substitutions.