Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7512.5%
D7410.0%
G7410.0%
C637.5%
Am737.5%
Em737.5%
G7#525.0%
Gm725.0%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)3
Gm7 -> C7Setup (Major Key)2
C7 -> Fmaj7Resolution (Major)2
Fmaj7 -> Bb7#11Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
Em7 -> B7susSetup (Major Key)1
B7sus -> Em7Resolution (Minor)1
Em7 -> B7b9Setup (Major Key)1
B7b9 -> Em7b5Resolution (Minor)1
Em7b5 -> A7b9Setup (Minor Key)1
A7b9 -> Dm7Resolution (Minor)1
Dm7 -> A7susSetup (Major Key)1
A7sus -> Dm7Resolution (Minor)1
Dm7/G -> G7Setup (Major Key)1

Harmonic Highlights

  • Secondary ii-V-I movement (Gm7 - C7 - Fmaj7) facilitates a smooth transition to the subdominant, a hallmark of the A-section’s harmonic expansion.
  • Strategic use of Lydian Dominant substitutions (Bb7#11, F7#11, Eb7#11) provides sophisticated “backdoor” resolutions and tritone substitute colors.
  • The bridge shifts the tonal center toward the mediant (Em7) using its V7 (B7), creating a temporary modal contrast to the C major home key.
  • Frequent use of altered dominant tensions (G7#5, A7b9) enhances the chromatic voice leading within standard ii-V turnarounds.

Improvisation Focus Mastering the Lydian Dominant scale over non-diatonic dominant chords and ensuring smooth guide-tone connections through rapid ii-V transitions.

Difficulty Rating 3/5: While the home key is C major, the frequent chromatic substitutions and bridge modulations require an intermediate understanding of jazz substitution theory.


📚 Standard Available in:

The Real Book - Volume VI
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