Chord Distribution Analysis

Chord SymbolCountFrequency
Dm9412.1%
Db69412.1%
Dmaj9412.1%
F6939.1%
Gb6939.1%
Gm739.1%
C7b939.1%
A7b9#526.1%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7b9Setup (Major Key)3
A7b9#5 -> Dm9Resolution (Minor)2

Harmonic Highlights

  • Frequent modal interchange between D Major and its parallel D Minor (and relative F Major) tonalities creates a shifting “light and shadow” atmosphere.
  • Use of chromatic “planing” with 6/9 chords (Db69 to Gb69) introduces non-functional color shifts that bypass traditional circle-of-fifths logic.
  • The A7b9#5 to Dm9 sequence utilizes altered dominant tension to bridge the gap between the bright major sections and the darker minor sections.
  • Integration of the G13 (IV dominant) provides a bluesy, subdominant flavor that anchors the sophisticated extensions.

Improvisation Focus Smoothly navigating the transformation of the 3rd (F# to F natural) as the harmony oscillates between D Major and D Minor tonalities.

Difficulty Rating 3/5; while the tempo is typically relaxed, the constant shifting between parallel keys and non-functional chromaticism requires precise harmonic awareness.


📚 Standard Available in:

The Real Book - Volume II
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