Chord Distribution Analysis

Chord SymbolCountFrequency
Cm71223.1%
F71121.2%
Gm759.6%
Bbmaj747.7%
Db0735.8%
Ebmaj723.8%
Bb/D23.8%
Dm723.8%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)10
F7 -> Cm7Resolution (Minor)4
F7 -> Bbmaj7Resolution (Major)3
Gm7 -> C7Setup (Major Key)2
Bbmaj7 -> F7susSetup (Major Key)1
Bbmaj7 -> Eb7Setup (Major Key)1
C7 -> Gm7Resolution (Minor)1
Dm7b5 -> G7b9Setup (Minor Key)1
G7b9 -> Cm7Resolution (Minor)1
Ebm7 -> Ab7Setup (Major Key)1
Cm7 -> F7b9Setup (Major Key)1

Harmonic Highlights

  • Employs a chromatic diminished passing chord (Dbยฐ7) to bridge the I (Bb/D) and ii7 (Cm7), creating smooth step-wise voice leading.
  • Relies on repetitive ii-V7 cells (Cm7 - F7) that reinforce the Bb major tonal center throughout the A sections.
  • Features a IV7 (Eb7) moving to iii7 (Dm7), providing a brief blues-inflected deviation before returning to functional diatonic movement.

Improvisation Focus Bb Major Bebop scale, emphasizing chord tones during the descending chromatic transitions.

Difficulty Rating 2/5: The harmonic rhythm is steady and the functional ii-V logic is predictable, making it highly accessible for intermediate soloists.


๐Ÿ“š Standard Available in:

The Real Book - Volume IV
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