Chord Distribution Analysis

Chord SymbolCountFrequency
G7821.1%
Dm7718.4%
A7410.5%
Cmaj7410.5%
Em737.9%
E7#525.3%
Fmaj725.3%
A7#525.3%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)7
A7 -> Dm7Resolution (Minor)4
Em7 -> A7Setup (Major Key)3
G7 -> Cmaj7Resolution (Major)3
Gm7 -> C7Setup (Major Key)1
C7 -> Fmaj7Resolution (Major)1
A7#5 -> Dm7Resolution (Minor)1
Em7b5 -> A7b9Setup (Minor Key)1
A7b9 -> Dm7Resolution (Minor)1

Harmonic Highlights

  • Relies on cyclical ii-V-I progressions (Dm7-G7-Cmaj7) and frequent secondary dominants (A7 as V/ii) to create perpetual forward motion.
  • Utilizes “step-wise” ii-V sequencing (Em7-A7 descending to Dm7-G7), a classic Evans technique for increasing harmonic density.
  • Employs the E7#5 as a functional secondary dominant (V/vi) resolving to Fmaj7, introducing chromatic tension within the diatonic structure.

Improvisation Focus Targeting 3rds and 7ths (guide tones) to maintain melodic clarity amidst the rapid harmonic rhythm.

Difficulty Rating 3/5; while the key center is stable, the brisk tempo and frequent chord changes require high-level technical facility and precise voice leading.


πŸ“š Standard Available in:

The Real Book - Volume I
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