Chord Distribution Analysis

Chord SymbolCountFrequency
Cm7412.1%
Eb7412.1%
Bb7412.1%
Fm739.1%
Gm/maj726.1%
Gm726.1%
Cm/maj726.1%
A7alt26.1%

Key Patterns Detected

PatternFunctionFrequency
Bb7 -> Fm7Resolution (Minor)3
Fm7 -> Bb7Setup (Major Key)3
Eb7 -> Bbm7Resolution (Minor)2
Bbm7 -> Eb7Setup (Major Key)1
D7 -> Gm6Resolution (Minor)1

Harmonic Highlights

  • Employs a chromatic line cliché over the tonic and subdominant minor chords (Gm/maj7, Cm/maj7), creating the signature “noir” tension through internal voice leading.
  • Transitions between G minor tonality and its relative Eb Major center using frequent ii-V-I sequences (Fm7 - Bb7 - Eb7).
  • Utilizes altered secondary dominants (A7alt) and chromatic dominant substitutions (Eb7 to D7) to navigate between the blues-inflected A sections and the more diatonic bridge.

Improvisation Focus G Melodic Minor scale.

Difficulty Rating 3/5 because while the tempo is slow, the player must accurately target the major seventh intervals within minor chord structures and resolve altered dominants effectively.


📚 Standard Available in:

The Real Book - Volume III
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