Chord Distribution Analysis

Chord SymbolCountFrequency
Fm917.0%
C759.4%
Bbm747.5%
Eb747.5%
C7b947.5%
Ab35.7%
G735.7%
Ab0723.8%

Key Patterns Detected

PatternFunctionFrequency
Bbm7 -> Eb7Setup (Major Key)3
Gm7 -> C7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
C7 -> FmResolution (Minor)2
Fm -> C7b9Setup (Major Key)2
Am7 -> D7Setup (Major Key)1
Bbm7 -> F7Setup (Major Key)1
F7 -> Bbm7Resolution (Minor)1
C7b9 -> FmResolution (Minor)1

Harmonic Highlights

  • Employs chromatic passing diminished chords ($Ab^{\circ7}$, $B^{\circ7}$) to bridge tonic voicings and $ii-V$ cycles, facilitating smooth voice leading.
  • Executes a rapid modulation from the F minor/major tonality to the relative major (Ab) via a $ii-V-I$ sequence ($Bbm7-Eb7-Ab$).
  • Utilizes a secondary dominant chain in the bridge ($Dm7-G7$) to establish a temporary tonicization of the dominant key, C major.

Improvisation Focus The F Harmonic Minor scale and the Whole-Half Diminished scale for navigating the frequent chromatic passing tones.

Difficulty Rating 3/5 โ€” The constant shifting between relative major/minor keys and the reliance on diminished substitutions require agile horizontal phrasing and a strong grasp of harmonic verticality.


๐Ÿ“š Standard Available in:

The Real Book - Volume IV
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