Chord Distribution Analysis

Chord SymbolCountFrequency
D7sus412.5%
Dmaj7412.5%
Am726.2%
D726.2%
Bbmaj726.2%
Em726.2%
Am7b526.2%
D7b926.2%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)2
D7 -> Gmaj7Resolution (Major)1
F7 -> Bbmaj7Resolution (Major)1
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gm7Resolution (Minor)1
Gm7 -> C7Setup (Major Key)1
C7 -> Fm7Resolution (Minor)1
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebmaj7Resolution (Major)1

Harmonic Highlights

  • The static D7sus opening shifts abruptly to Dmaj7, utilizing non-functional chromaticism to create Wayne Shorter’s signature “shimmering” modal effect.
  • A sequential chain of ii-V-I progressions modulates by a minor third (G major to Bb major), requiring agile navigation of distal key centers.
  • The inclusion of a minor ii-V (Am7b5 to D7b9) serves as a functional pivot to reconcile the bright major modulations with the G minor home key.

Improvisation Focus Modal interchange and navigating rapid tonal shifts using Lydian and Mixolydian colors.

Difficulty Rating 4/5. The combination of non-functional dominant pedals and high-speed modulations between unrelated major keys requires advanced harmonic visualization and technical facility.


📚 Standard Available in:

The Real Book - Volume I
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