Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7b5515.6%
G7b9515.6%
Cm7412.5%
Fm726.2%
Am7b526.2%
Cm626.2%
G7b1313.1%
F713.1%

Key Patterns Detected

PatternFunctionFrequency
Dm7b5 -> G7b9Setup (Minor Key)5
G7b9 -> Cm7Resolution (Minor)2
Cm7 -> G7b13Setup (Major Key)1
G7b13 -> Cm7Resolution (Minor)1
Cm7 -> F7Setup (Major Key)1
Fm7 -> Bb7Setup (Major Key)1
G7b9 -> Cm7/BbResolution (Minor)1
G7b9 -> Cm6Resolution (Minor)1

Harmonic Highlights

  • Features a prominent i–IV7 movement (Cm7 to F7), requiring a shift from C Aeolian to C Dorian or Melodic Minor to accommodate the A natural.
  • Utilizes a ii–V–I progression into the relative major (Fm7–Bb7–Ebmaj7), providing a brief modulation that lightens the somber minor mood.
  • Incorporates chromaticism via the bVI7–bII7 (Ab7–Db7) and bIImaj7 (Dbmaj7), serving as sophisticated substitutes that intensify the harmonic tension.
  • Employs frequent minor ii–V–i turnarounds (Dm7b5–G7b9–Cm), reinforcing the dark, brooding tonal center of C minor.

Improvisation Focus The C Harmonic Minor scale (to target the B natural and Ab over the G7b9 dominant function).

Difficulty Rating 3/5; the slow tempo aids the player, but the frequent shifts between minor tonality, relative major, and chromatic substitutions require solid fretboard/keyboard visualization.