Chord Distribution Analysis

Chord SymbolCountFrequency
Amb6716.7%
Am716.7%
Fmaj7716.7%
E7#937.1%
Am1124.8%
G7sus24.8%
F#m7b524.8%
E7b924.8%

Key Patterns Detected

PatternFunctionFrequency
E7b9 -> Amb6Resolution (Minor)2
Em7 -> A7Setup (Major Key)1
A7 -> Dmaj7Resolution (Major)1
Bm7b5 -> E7b9Setup (Minor Key)1

Harmonic Highlights:

  • The alternating Amb6 to Am tonic vamp establishes a static Aeolian environment, utilizing the b6 extension for a distinctive minor-key color.
  • Parallel quartal movement occurs through the Dm11 โ€“ Em11 โ€“ Am11 sequence, reflecting a modal approach to subdominant and dominant functions.
  • A descending chromatic bass line (F#m7b5 โ€“ Fmaj7 โ€“ E7sus) provides a linear bridge to the dominant, softening the traditional ii-V-i resolution.
  • Dominant sus chords (G7sus, E7sus) are used to delay harmonic tension, favoring open, suspended textures over functional dominant-to-tonic resolutions.

Improvisation Focus: A Aeolian and A Dorian modal switching.

Difficulty Rating: 3 (Intermediate). The challenge lies in maintaining melodic momentum over static modal sections while navigating the non-functional chromaticism of the bridge.


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The Real Book - Volume I
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