Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7314.3%
Ebm7314.3%
Cm729.5%
F729.5%
Gm729.5%
Bbmaj714.8%
G7#514.8%
F#0714.8%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)2
G7#5 -> Cm7Resolution (Minor)1
Em7b5 -> A7b9Setup (Minor Key)1
A7b9 -> Dm7Resolution (Minor)1
Gm7 -> C7Setup (Major Key)1
C7 -> Fmaj7Resolution (Major)1

Harmonic Highlights

  • Utilizes the VI7 (G7#5) as a secondary dominant to create a strong chromatic pull toward the ii chord (Cm7).
  • Incorporates the #ivo7 (F#dim7) as a passing chord to bridge the V and vi, adding sophisticated tension to the turnaround.
  • Features rapid “side-slipping” ii-V movements (Ebm7โ€“Ab7 to Dm7โ€“G7) that momentarily shift the tonal center away from the Bb home key.
  • Employs frequent modal interchange and brief tonicization of F major and D minor, requiring precise navigation of moving target centers.

Improvisation Focus Navigating dense ii-V-I sequences using guide-tone lines to maintain melodic clarity amidst frequent modulations.

Difficulty Rating 4/5: The combination of a 3/4 waltz meter, constant chromatic shifts, and rapid harmonic rhythm demands advanced melodic and rhythmic awareness.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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