Chord Distribution Analysis

Chord SymbolCountFrequency
Cm7928.1%
G7b9515.6%
Dm7b5412.5%
F7412.5%
Eb639.4%
Eb6/G26.2%
Bb726.2%
F#0713.1%

Key Patterns Detected

PatternFunctionFrequency
Dm7b5 -> G7b9Setup (Minor Key)4
G7b9 -> Cm7Resolution (Minor)4
Cm7 -> F7Setup (Major Key)3
Fm7 -> Bb7Setup (Major Key)1

Harmonic Highlights

  • Frequent oscillation between Eb major (I) and C minor (vi), utilizing standard ii-V-I and ii-V-i cadences to define both tonal centers.
  • The chromatic sequence F7 - F#o7 - Eb6/G creates a sophisticated transition from the secondary dominant to the tonic via a diminished passing chord.
  • Predominant use of the G7b9 (V/vi) acts as a strong pivot point, driving the resolution back to the C minor key center.

Improvisation Focus Voice leading through the C Harmonic Minor scale over the minor ii-V-i sections.

Difficulty Rating 3/5; the rapid harmonic rhythm and constant shifts between relative major and minor require strong melodic control, especially at its typically fast performance tempo.


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The Real Book - Volume III
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