Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7517.9%
G7310.7%
C627.1%
A727.1%
Bb727.1%
Emaj727.1%
Gmaj727.1%
Dbmaj727.1%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)2
A7 -> Dm7Resolution (Minor)1
Fm7 -> Bb7Setup (Major Key)1
F#m7 -> B7Setup (Major Key)1
B7 -> Emaj7Resolution (Major)1
Am7 -> D7Setup (Major Key)1
D7 -> Gmaj7Resolution (Major)1
Ebm7 -> Ab7Setup (Major Key)1
Ab7 -> Dbmaj7Resolution (Major)1

Harmonic Highlights

  • Utilizes a foundational I–VI7–ii7 sequence (C6–A7–Dm7), where the secondary dominant A7 provides forward harmonic momentum toward the supertonic.
  • Incorporates a “back-door” ii–V progression (Fm7–Bb7) acting as a subdominant minor substitution that creates chromatic tension before resolving to the mediant (Em7).
  • The bridge features rapid sequential modulations, cycling through ii–V–I progressions in E major and G major, shifting the tonal center by major seconds.

Improvisation Focus Chord tone targeting and smooth voice leading through sequential ii–V cycles.

Difficulty Rating 3 (Intermediate); while the A sections utilize standard swing vocabulary, the bridge requires precise navigation of rapid, shifting tonal centers.


📚 Standard Available in:

The Real Book - Volume II
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