Chord Distribution Analysis

Chord SymbolCountFrequency
C6818.2%
A7613.6%
G7511.4%
Dm7511.4%
E749.1%
D736.8%
Cmaj724.5%
Bm724.5%

Key Patterns Detected

PatternFunctionFrequency
A7 -> Dm7Resolution (Minor)3
Bm7 -> E7Setup (Major Key)2
Dm7/G -> G7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
G7 -> Dm7Resolution (Minor)1
Am7 -> D7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1
Dm7 -> A7Setup (Major Key)1

Harmonic Highlights

  • Employs an extended secondary dominant chain (III7 - VI7 - II7 - V7) that creates a rhythmic, driving circle-of-fifths motion typical of the Swing Era.
  • Features a iii-VI progression (Bm7 - E7) acting as a secondary ii-V to the supertonic, reinforcing the harmonic move toward the dominant.
  • Utilizes Dm7/G (G9sus) as a functional dominant substitute, softening the resolution back to the C6 tonic.
  • Maintains a strong diatonic framework in C major, primarily using C6 chords to emphasize a stable, “home” tonality between cycling dominants.

Improvisation Focus Guide tone navigation (focusing on 3rds and 7ths) to highlight the chromatic voice-leading within the dominant cycle.

Difficulty Rating 2/5 β€” The predictable circle-of-fifths movement and clear tonal center make it an accessible study for intermediate players learning to navigate secondary dominants.


πŸ“š Standard Available in:

The Real Book - Volume III
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