Chord Distribution Analysis

Chord SymbolCountFrequency
E7814.0%
D7712.3%
Am7610.5%
C758.8%
G635.3%
Fmaj735.3%
F723.5%
B7/D#23.5%

Key Patterns Detected

PatternFunctionFrequency
E7 -> Am7Resolution (Minor)4
Am7 -> D7Setup (Major Key)4
B7/D# -> Em7Resolution (Minor)2
Dm7 -> G7Setup (Major Key)2
Gm7 -> C7Setup (Major Key)2
C7 -> Fmaj7Resolution (Major)2

Harmonic Highlights

  • Extensive use of secondary dominants (E7-A7-D7-G7) creating a “Circle of Fifths” chain that provides strong forward momentum toward the tonic.
  • Frequent use of chromatic passing chords and tritone substitutions, specifically the Em7-Eb7-Dm7-G7 sequence, which creates smooth voice-leading between the mediant and supertonic.
  • Functional application of the IV7 (F7) as a “backdoor” dominant or blues-inflected subdominant, adding harmonic color to the otherwise diatonic C major landscape.

Improvisation Focus Targeting the 3rds and 7ths of secondary dominants to highlight rapid chromatic shifts within the AABA structure.

Difficulty Rating 3/5. The relaxed swing tempo is approachable, but the constant stream of non-diatonic dominant chords requires precise harmonic targeting and melodic fluidity.


📚 Standard Available in:

The Real Book - Volume V
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