Chord Distribution Analysis

Chord SymbolCountFrequency
B7#11819.0%
Eb749.5%
Dmaj749.5%
Bb7b1324.8%
Ab7b1324.8%
Db724.8%
F#m724.8%
D24.8%

Key Patterns Detected

PatternFunctionFrequency
Ebm7b5 -> Ab7#5Setup (Minor Key)1
Ab7#5 -> Dbmaj7Resolution (Major)1
Em7b5 -> A7b9Setup (Minor Key)1
A7b9 -> Dmaj7Resolution (Major)1
G#m7b5 -> C#7#5Setup (Minor Key)1

Harmonic Highlights

  • Uses a static B7#11 (Lydian Dominant) as a “home” sound, subverting traditional V-I expectations in favor of a modal, Impressionistic texture.
  • Employs chromatic side-stepping and descending dominant cycles (Bb7 to Eb7 to Ab7 to Db7) to transition seamlessly between distant tonal centers.
  • Features non-functional parallelism, where dominant chords move by root intervals that do not resolve to a tonic, creating a “floating” harmonic feel.
  • Incorporates sudden third-relationship modulations, rapidly shifting the listener’s perspective between B major, D major, and Db major.

Improvisation Focus The Lydian Dominant scale (4th mode of Melodic Minor) is the essential tool for navigating the recurring dominant chords with #11 extensions while maintaining the composition’s ethereal quality.

Difficulty Rating 4/5: The lack of standard functional resolutions and the constant shifting of key centers require an advanced ability to navigate non-functional harmony and specific melodic minor modes.


📚 Standard Available in:

The Real Book - Volume II
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