Chord Distribution Analysis

Chord SymbolCountFrequency
Cm815.7%
G7b959.8%
G759.8%
Abmaj747.8%
Dm7b535.9%
Bb735.9%
C635.9%
Bbm735.9%

Key Patterns Detected

PatternFunctionFrequency
Dm7b5 -> G7b9Setup (Minor Key)3
Bbm7 -> Eb7Setup (Major Key)3
Eb7 -> Abmaj7Resolution (Major)3
G7b9 -> CmResolution (Minor)2
C7 -> Fmaj7Resolution (Major)2
Fmaj7 -> Bb7Setup (Major Key)2
G7b9 -> Cmaj7Resolution (Major)1
Gm7 -> C7Setup (Major Key)1
Cm7 -> G7Setup (Major Key)1
Dm7/G -> G7Setup (Major Key)1
Dm7 -> G7Setup (Major Key)1

Harmonic Highlights:

  • Frequent use of the minor iiø7-V7b9-i cadence (Dm7b5-G7b9-Cm) consistently establishes the C minor tonic.
  • A striking shift to Cmaj7 introduces a parallel major tonic, providing significant harmonic contrast and brightness.
  • A clear secondary dominant progression (Gm7-C7-Fmaj7) signals a temporary modulation to F major.
  • The Bb7 chord functions as a dominant leading to related keys or a tritone substitution, enriching the harmonic movement.

Improvisation Focus: Navigating the C Harmonic Minor scale and its derived modes over the altered dominant and minor tonic chords.

Difficulty Rating: 3 (Intermediate). The blend of minor key harmony, altered dominants, and temporary modulations to parallel and related major keys requires solid harmonic understanding.