Chord Distribution Analysis

Chord SymbolCountFrequency
Am7911.2%
E767.5%
Bm756.2%
Em756.2%
G745.0%
A745.0%
Dm733.8%
D7#1133.8%

Key Patterns Detected

PatternFunctionFrequency
E7 -> Am7Resolution (Minor)5
Am7 -> D7#11Setup (Major Key)3
Dm7 -> G7Setup (Major Key)2
G7 -> Cmaj7Resolution (Major)2
A7#5 -> Dm7b5/AbResolution (Minor)2
Dm7b5/Ab -> G7Setup (Minor Key)2
F#7 -> Bm7Resolution (Minor)2
Em7 -> A7Setup (Major Key)2
A7 -> Dmaj7Resolution (Major)1
B7#5 -> Em7b5/BbResolution (Minor)1
Em7b5/Bb -> A7Setup (Minor Key)1
Bm7 -> E7#11Setup (Major Key)1
D7#11 -> Gmaj7Resolution (Major)1
Abmaj7 -> Db7Setup (Major Key)1
Bm7b5 -> E7Setup (Minor Key)1

Harmonic Highlights

  • Utilizes non-functional “side-slipping” motions, such as Cmaj7 to Bb7#11, creating a rich, impressionistic harmonic palette.
  • Features frequent dominant alterations (A7#5, D7#11) and tritone substitutions (Db9) that disrupt standard ii-V-I expectations.
  • Incorporates distant modal shifts like Ebmaj7 to Abmaj7, requiring smooth voice leading across non-diatonic landscapes.
  • The use of Dm7b5/Ab creates a chromatic approach to the G7, blending subdominant minor function with pedal-like tension.

Improvisation Focus The Lydian Dominant scale to accommodate the frequent #11 extensions and non-resolving dominant chords.

Difficulty Rating 4 (Advanced) โ€” The unconventional modulations and constant shifts through distantly related keys require sophisticated harmonic fluency and precise melodic navigation.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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