Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7425.0%
G7425.0%
Gm7425.0%
C7425.0%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)4
Gm7 -> C7Setup (Major Key)4
G7 -> Dm7Resolution (Minor)3
C7 -> Gm7Resolution (Minor)3

Harmonic Highlights

  • The progression utilizes extended ii-V sequences, beginning with a v-V/IV movement (Dm7-G7) that emphasizes the subdominant region before reaching the tonic.
  • Transition to Gm7-C7 establishes a i-IV7 “Dorian blues” relationship, a hallmark of Hefti’s sophisticated, groove-oriented television scoring.
  • The harmonic rhythm is exceptionally stable, utilizing four-bar blocks of static ii-V cells rather than rapid functional turnarounds.

Improvisation Focus Dorian and Mixolydian modal interchange over shifting ii-V tonal centers.

Difficulty Rating 2/5: The repetitive harmonic cells are predictable and accessible for intermediate players, though they require rhythmic ingenuity to avoid melodic stagnation.