Chord Distribution Analysis

Chord SymbolCountFrequency
Cm618.8%
Dm7b5515.6%
G7b9515.6%
Ab7515.6%
G7412.5%
C7b926.2%
Fm726.2%
Cmaj726.2%

Key Patterns Detected

PatternFunctionFrequency
Dm7b5 -> G7b9Setup (Minor Key)5
G7b9 -> CmResolution (Minor)4
C7b9 -> Fm7Resolution (Minor)2
G7b9 -> Cmaj7Resolution (Major)1
G7 -> CmResolution (Minor)1

Harmonic Highlights:

  • Features a strong i - V7/iv - iv progression with C7b9 acting as a secondary dominant to Fm7.
  • Includes an unexpected resolution of iiø7-V7b9 (Dm7b5-G7b9) to Cmaj7, briefly tonicizing the parallel major.
  • Utilizes a distinctive Ab7 (bVI7) to G7 (V7) oscillation to build tension and provide a chromatic approach to the dominant.

Improvisation Focus: C Harmonic Minor scale.

Difficulty Rating: 3 (Intermediate). It combines standard minor key harmony with notable secondary dominant usage and an intriguing shift to the parallel major, demanding some harmonic agility.