Chord Distribution Analysis

Chord SymbolCountFrequency
C61016.4%
Dm7914.8%
G7711.5%
C69.8%
Cmaj758.2%
Dm7b546.6%
Bb623.3%
A0723.3%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)5
G7 -> Cmaj7Resolution (Major)2
G7 -> Dm7Resolution (Minor)1
Cm7 -> F7Setup (Major Key)1
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1
G7 -> Dm7b5Resolution (Minor)1
Em7 -> A7Setup (Major Key)1

Harmonic Highlights

  • Expansive 108-bar A-A-B-A-C-C structure that deviates significantly from the standard 32-bar AABA form, requiring high structural awareness.
  • Frequent use of modal interchange, specifically shifting from C major to the parallel minor (Cm7 - F7) to facilitate a modulation to the bVII (Bb6) area.
  • Chromatic passing harmony via the #I diminished chord (C#ยฐ7) acting as a secondary leading-tone to the ii chord (Dm7).
  • Sophisticated use of the IVm6 or bVII7 chords to create a “sentimental” bridge between the tonic major and subdominant regions.

Improvisation Focus Navigating the transitions between C Major and C Parallel Minor scales.

Difficulty Rating 4. The unusually long form and constant shifts between major and minor tonal centers require advanced melodic pacing and harmonic memory.


๐Ÿ“š Standard Available in:

The Real Book - Volume VI
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