Chord Distribution Analysis

Chord SymbolCountFrequency
Fmaj7527.8%
Gm7316.7%
C7316.7%
Abm7211.1%
Db7211.1%
Am715.6%
D715.6%
F615.6%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)3
Abm7 -> Db7Setup (Major Key)2
Am7 -> D7Setup (Major Key)1
D7 -> Gm7Resolution (Minor)1
Db7 -> Abm7Resolution (Minor)1

Harmonic Highlights

  • Initial tonic prolongation on Fmaj7 establishes a stable tonal center before entering active cyclical progressions.
  • The iii-VI-ii-V sequence (Am7โ€“D7โ€“Gm7โ€“C7) utilizes secondary dominants to create forward rhythmic and harmonic momentum.
  • Chromatic side-slipping via the Abm7โ€“Db7 cell functions as a non-diatonic ii-V shift, providing the signature “donkey trot” tension before resolving to the primary ii-V.
  • Final resolution to F6 reinforces a classic Americana swing aesthetic, contrasting the earlier chromaticism.

Improvisation Focus Navigating parallel ii-V cells and chromatic side-slipping.

Difficulty Rating 3/5. While the F major sections are accessible, the sudden half-step shifts in the ii-V chains require precise harmonic navigation and intermediate voice-leading skills.


๐Ÿ“š Standard Available in:

The Real Book - Volume VI
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