Chord Distribution Analysis

Chord SymbolCountFrequency
Fm61123.9%
C7#9817.4%
Bbm748.7%
Ebm624.3%
Dbmaj724.3%
C7#524.3%
Eb7b924.3%
Abmaj724.3%

Key Patterns Detected

PatternFunctionFrequency
C7#9 -> Fm6Resolution (Minor)4
Fm6 -> C7#9Setup (Major Key)2
Bbm7 -> Eb7b9Setup (Major Key)2
Eb7b9 -> Abmaj7Resolution (Major)2
C7#5 -> Fm6Resolution (Minor)1
D7#9 -> Gm7b5Resolution (Minor)1
C7#5 -> Fm7Resolution (Minor)1
Fm7 -> Bb7Setup (Major Key)1
Abmaj7 -> Db7Setup (Major Key)1
Cm7 -> F7b9Setup (Major Key)1
F7b9 -> Bbm7Resolution (Minor)1

Harmonic Highlights:

  • The i-bVII6-bVImaj7-V7alt progression (Fm6-Ebm6-Dbmaj7-C7#5) establishes a characteristic minor tonality with a strong altered dominant resolution.
  • Extensive use of altered dominant chords (C7#5, D7#9, C7#9, D7b5#9) and tritone substitutions (Gb7 for C7) creates high tension and chromaticism.
  • A complex, rapid harmonic rhythm is evident in sequences like Fm7-Bb7-Eb7-D7b5#9-C7#9, showcasing chained dominants and advanced voice leading.

Improvisation Focus: Altered Scale (Super Locrian) over dominant 7th chords.

Difficulty Rating: 5 - The chart features rapid harmonic rhythm, frequent altered dominants, and complex non-diatonic progressions, demanding sophisticated melodic and harmonic understanding.