Chord Distribution Analysis

Chord SymbolCountFrequency
C9#5413.8%
Fm7413.8%
Eb6310.3%
F7310.3%
Bb7310.3%
Db726.9%
B726.9%
Dm7b513.4%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)1
Dm7b5 -> G7b9Setup (Minor Key)1
G7b9 -> Cm7Resolution (Minor)1
Cm7 -> F7Setup (Major Key)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights:

  • The prominent use of C9#5 (V/iv) resolving to Fm7 (iv), showcasing an altered dominant quality and secondary dominant function within the C minor key.
  • The distinctive Db7 (bII7) chord which deceptively resolves to C9#5 (V/iv) rather than the expected Cm7, creating an extended tension-release cycle.
  • A clear iiø7-V7b9-i minor progression (Dm7b5-G7b9-Cm7) firmly establishes the C minor tonic and features the characteristic b9 alteration.
  • The chromatic dominant sequence F7-B7-Bb7, particularly the B7, introduces significant chromaticism and a brief departure from conventional dominant resolutions.

Improvisation Focus: Altered scale (Super Locrian) on dominant chords.

Difficulty Rating: 4 - Features numerous altered dominant chords, non-standard resolutions, and a sophisticated harmonic structure demanding advanced conceptual understanding.