Chord Distribution Analysis

Chord SymbolCountFrequency
Eb691441.2%
Fm111029.4%
Dbmaj9514.7%
D7#912.9%
Ebm712.9%
Ab712.9%
Dbm712.9%
Gb712.9%

Key Patterns Detected

PatternFunctionFrequency
Ebm7 -> Ab7Setup (Major Key)1
Ab7 -> Dbmaj9Resolution (Major)1
Dbm7 -> Gb7Setup (Major Key)1

Harmonic Highlights

  • The composition centers on an extended ii-I oscillation (Fm11 to Eb69), establishing a static modal foundation rather than a functional, driving cadence.
  • The shift to Dbmaj9 introduces a bVIImaj7 chord, providing a Lydian color shift that resolves back to the tonic through parallel harmonic planing.
  • The progression emphasizes quartal voicings and suspended tensions (m11, 6/9), prioritizing textural color over traditional dominant-to-tonic resolution.

Improvisation Focus Modal interchange between Eb Major/Dorian and Db Lydian.

Difficulty Rating 3/5; while the harmonic rhythm is slow, the challenge lies in sustaining melodic interest over static vamps and navigating non-functional shifts.


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The Real Book - Volume I
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