Chord Distribution Analysis

Chord SymbolCountFrequency
C71120.4%
Gm71018.5%
D7611.1%
Fmaj759.3%
Dm759.3%
Am747.4%
Am7b523.7%
D7b923.7%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)10
D7 -> Gm7Resolution (Minor)5
Am7 -> D7Setup (Major Key)4
C7 -> Fmaj7Resolution (Major)4
Am7b5 -> D7b9Setup (Minor Key)2
Bm7b5 -> E7Setup (Minor Key)2
E7 -> Am7Resolution (Minor)2
A7 -> Dm7Resolution (Minor)1
Dm7 -> G7Setup (Major Key)1

Harmonic Highlights

  • Utilizes a cyclical I-vi-ii-V turnaround (Fmaj7-Dm7-Gm7-C7) as the primary harmonic engine for the A sections.
  • Employs secondary dominants and chromatic ii-V sequences (Am7b5-D7b9) to create temporary tonicizations of G minor and A minor.
  • Features a rapid harmonic rhythm where chords typically change every two beats, characteristic of “Rhythm Changes” variants.
  • Incorporates a Bm7b5 to E7 turnaround to transition smoothly toward the iii chord (Am7), adding sophisticated minor-key color to a major-key structure.

Improvisation Focus F Major Bebop scale and fluid navigation of ii-V-I arpeggios.

Difficulty Rating 3/5: The harmonic language is standard, but the typical high-velocity tempo and dense chord changes demand significant technical facility and mental agility.


๐Ÿ“š Standard Available in:

The Real Book - Volume VI
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