Chord Distribution Analysis

Chord SymbolCountFrequency
Cmaj7410.8%
Em7b5410.8%
A7b13410.8%
Dm7b5410.8%
G13b9410.8%
Am7410.8%
G7410.8%
Dm738.1%

Key Patterns Detected

PatternFunctionFrequency
Em7b5 -> A7b13Setup (Minor Key)4
A7b13 -> Dm7b5Resolution (Minor)2
A7b13 -> Dm7Resolution (Minor)2
Dm7 -> G7Setup (Major Key)2
E7 -> Am7Resolution (Minor)1
Am7 -> D7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1

Harmonic Highlights

  • Frequent use of minor ii-V-i turnarounds (Em7b5 to A7b13) targeting the ii-chord (Dm7), which adds chromatic depth to the diatonic C major framework.
  • The bridge utilizes a subdominant shift (Fmaj7) followed by a secondary dominant (D7), acting as a V/V to re-establish the primary turnaround to G7.
  • Extensive application of altered extensions (b9, b13) on dominant chords creates sophisticated tension-resolution patterns typical of the 1930s ballad style.

Improvisation Focus Navigating minor ii-V-i progressions using the D harmonic minor or G altered scales to highlight the b9 and b13 colors.

Difficulty Rating 3/5; while the ballad tempo is forgiving, the frequent shifts between major and minor-inflected ii-V patterns require precise harmonic navigation.


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The Real Book - Volume I
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