Chord Distribution Analysis

Chord SymbolCountFrequency
Cmaj7513.9%
Dbmaj7411.1%
G7411.1%
Dm738.3%
Bbm725.6%
Eb725.6%
Abmaj725.6%
Fmaj725.6%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)3
Bbm7 -> Eb7Setup (Major Key)2
G7 -> Cmaj7Resolution (Major)2
A7 -> Dm7Resolution (Minor)2
Eb7 -> Abmaj7Resolution (Major)1
Gm7 -> C7Setup (Major Key)1
C7 -> Fmaj7Resolution (Major)1
Am7 -> D7Setup (Major Key)1
Ebm7 -> Ab7Setup (Major Key)1
Dm7b5 -> G7Setup (Minor Key)1
Em7 -> A7Setup (Major Key)1

Harmonic Highlights

  • The immediate shift from I (Cmaj7) to bII (Dbmaj7) creates a distinctive Neapolitan relationship, establishing a “dream-like” chromaticism.
  • Frequent use of ii-V-I sequences modulates rapidly through major keys (Ab, F, and C), requiring smooth navigation of temporary tonics.
  • The bridge utilizes side-slipping and deceptive resolutions, notably the Ebm7-Ab7 moving chromatically to the Dm7-G7 turnaround.

Improvisation Focus Navigating rapid key center modulations via Major/Lydian scales on tonic chords and the Bebop scale on connecting ii-V sequences.

Difficulty Rating 3/5: Requires intermediate proficiency to track frequent, non-diatonic shifts and maintain melodic continuity across multiple temporary tonal centers.


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The Real Book - Volume VI
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