Chord Distribution Analysis

Chord SymbolCountFrequency
Ab7412.5%
G7#539.4%
C7#939.4%
Fm626.2%
D7#926.2%
Ebm726.2%
F726.2%
Gb726.2%

Key Patterns Detected

PatternFunctionFrequency
Ebm7 -> Ab7Setup (Major Key)2
Cm7 -> F7Setup (Major Key)1
F7 -> Bbm6Resolution (Minor)1
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebm7Resolution (Minor)1
Gm7b5 -> C7#5Setup (Minor Key)1
C7#5 -> Fm6Resolution (Minor)1
C7#9 -> Fm7Resolution (Minor)1

Harmonic Highlights:

  • Features heavily altered dominant chords (D7#9, G7#5, C7#9, D7b9) often leading to unexpected or non-diatonic resolutions.
  • Incorporates repeated non-diatonic II-V sequences like Ebm7-Ab7, creating frequent, brief modulations to remote tonal centers (e.g., Db major).
  • Exhibits unpredictable dominant shifts, such as G7#5 to Gb7, utilizing tritone substitution and chromatic movement rather than standard V-I.

Improvisation Focus: The Melodic Minor scale (and its modes) is essential for navigating the complex altered dominant and various minor chord qualities.

Difficulty Rating: 5 (Advanced) due to the rapid harmonic rhythm, frequent modulations, and extensive use of altered chord voicings demanding high proficiency.