Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7615.4%
Bb7512.8%
Ab7410.3%
Gm7410.3%
C737.7%
Ebmaj725.1%
Gb0725.1%
Eb625.1%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)5
Bb7 -> Ebmaj7Resolution (Major)2
Ebmaj7 -> Ab7Setup (Major Key)2
Gm7 -> C7Setup (Major Key)2
C7 -> Fm7Resolution (Minor)2
Fm7b5 -> Bb7b13Setup (Minor Key)1
Bb7b13 -> Fm7Resolution (Minor)1
Abm7 -> Db7Setup (Major Key)1
Cm7 -> F7Setup (Major Key)1

Harmonic Highlights

  • The opening minor line clichĂ© (Ebm – Ebm/maj7 – Ebm7 – Ebm6) utilizes descending chromaticism to bridge the parallel minor and major tonalities.
  • Incorporation of the “backdoor” resolution (Abm7 – Db7 to Ebmaj7) provides a sophisticated non-dominant path back to the tonic.
  • Chromatic voice leading is enhanced by the Gb°7 passing chord, which functionally connects the Gm7 (iii) and Fm7 (ii) chords.
  • Frequent shifts between minor ii-V-i (Fm7b5 – Bb7b13) and major ii-V-I sequences create high tonal contrast and emotional depth.

Improvisation Focus The Eb Melodic Minor scale, used to navigate the opening minor line cliché and the Abm7-Db7 backdoor progression.

Difficulty Rating 3/5: The piece requires a solid grasp of parallel key centers and the ability to voice-lead through chromatic passing chords.


📚 Standard Available in:

The Real Book - Volume III
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