Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7618.8%
Cmaj7412.5%
G7412.5%
Cm726.2%
F726.2%
Bbmaj726.2%
Bbm726.2%
Eb726.2%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)4
Cm7 -> F7Setup (Major Key)2
F7 -> Bbmaj7Resolution (Major)2
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2
Dm7 -> G7#9Setup (Major Key)2
G7 -> Cmaj7Resolution (Major)2
G7#9 -> Dm7Resolution (Minor)1
G7 -> Cmaj7/EResolution (Major)1
A7 -> Dm7Resolution (Minor)1
C#m7 -> F#7Setup (Major Key)1
G7#9 -> Cmaj7Resolution (Major)1

Harmonic Highlights

  • Sequential ii-V-I modulations: The A-section descends through three distinct tonal centers (C, Bb, and Ab) via whole-step shifts of the ii-V-I cell.
  • Harmonic Parallelism: The structure relies on identical harmonic units transposed down by whole steps, requiring the soloist to shift scales rapidly.
  • Chromatic Turnarounds: The bridge utilizes standard ii-V patterns in the home key, punctuated by a chromatic side-slip (C#m7-F#7) to create tension before returning to the Dm7.

Improvisation Focus Smooth voice-leading through guide-tones (3rds and 7ths) to bridge the transitions between rapidly shifting key centers.

Difficulty Rating 3/5 because the performer must navigate constant modulations while maintaining melodic continuity across three different major scales.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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