Chord Distribution Analysis

Chord SymbolCountFrequency
G7411.4%
Cmaj738.6%
Bbmaj738.6%
Dm738.6%
B7b925.7%
A7#925.7%
Abmaj725.7%
G7#925.7%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)3
G7 -> Cmaj7Resolution (Major)2
G7#9 -> Dm7Resolution (Minor)1
G7 -> Cmaj7/EResolution (Major)1
Cm7 -> F7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1
Bbmaj7 -> Eb7Setup (Major Key)1

Harmonic Highlights

  • The A section utilizes a signature chromatic “side-stepping” sequence (Cmaj7-B7-Bbmaj7-A7-Abmaj7-G7), employing descending parallel major-to-dominant movements that function as a series of tritone-related substitutions.
  • The bridge (B section) features rapid modulatory shifts, moving from the C major tonic to Bb major and Eb major via standard ii-V-I cells.
  • Smooth voice leading is maintained through diminished passing chords (Eb°7) and secondary dominants that bridge the gap between distant tonal centers.
  • The harmonic language emphasizes upper-structure tensions, with the melody frequently landing on the #9, b9, or 13th of the dominant chords.

Improvisation Focus Chromatic guide-tone targeting to navigate the descending half-step parallelisms.

Difficulty Rating 4/5; the constant stream of non-diatonic shifts and rapid modulations requires advanced harmonic navigation and precise ear-to-instrument coordination.


📚 Standard Available in:

The Real Book - Volume II
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