Chord Distribution Analysis

Chord SymbolCountFrequency
Fm749.5%
Cm637.1%
Gm37.1%
D7b937.1%
Cm24.8%
Cmb624.8%
Cm724.8%
Bb724.8%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)2
Bb7 -> Ebmaj7Resolution (Major)2
Gm7b5 -> C7b9Setup (Minor Key)2
Fm7 -> Bb7susSetup (Major Key)2
D7b9 -> GmResolution (Minor)2
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gmaj7Resolution (Major)1
Dm7 -> G7Setup (Major Key)1
G7 -> CmResolution (Minor)1

Harmonic Highlights

  • The A section utilizes a chromatic line cliché (Cm–Cmb6–Cm6–Cm7), creating melodic motion within a static tonic minor harmony.
  • The progression incorporates frequent minor ii-V-I sequences (Gm7b5–C7b9–Fm7), necessitating a strong grasp of harmonic minor and altered dominant resolutions.
  • The bridge shifts the tonal center to the dominant minor (G minor) via a ii-V (Am7b5–D7b9), providing a temporary modulation that mirrors the tonic’s minor architecture.
  • Use of the Eb7#11 acts as a sophisticated tritone substitution or dominant preparation, smoothing the transition toward the D7b9.

Improvisation Focus Minor ii-V-I vocabulary using the Melodic Minor and Altered scales.

Difficulty Rating 3/5: While the tempo is usually slow, the performer must accurately navigate minor-key functional harmony and internal chromatic voice-leading.


📚 Standard Available in:

The Real Book - Volume III
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