Chord Distribution Analysis

Chord SymbolCountFrequency
C6517.9%
Ab7414.3%
Dm7414.3%
G7414.3%
Em727.1%
Eb0727.1%
E727.1%
A7b927.1%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)4
G7b13 -> Dm7Resolution (Minor)1

Harmonic Highlights

  • The progression features a striking non-diatonic shift from C6 to Ab7, acting as a bVI7 chord that introduces a bluesy, subdominant minor color.
  • The bridge utilizes an extended circle-of-fifths cycle (E7–A7–D7–G7), a classic “Rhythm Changes” style III-VI-II-V sequence.
  • Chromatic passing motion is utilized via the Ebº7 chord, which provides a smooth functional bridge between the Em7 (iii) and Dm7 (ii).
  • Harmonic tension is heightened in turnarounds through the use of altered dominants, specifically the G7b13, to pull strongly back to the tonic.

Improvisation Focus Chord tone targeting and voice leading through the bridge’s cycle of secondary dominants.

Difficulty Rating 3/5: The A sections are accessible, but the bridge demands a solid grasp of navigating rapid secondary dominant changes and chromatic substitutions.


📚 Standard Available in:

The Real Book - Volume II
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