Chord Distribution Analysis

Chord SymbolCountFrequency
Abmaj7425.0%
Eb7212.5%
A7#11212.5%
Gm7b516.2%
C7b916.2%
Fm716.2%
Db716.2%
Bb716.2%

Key Patterns Detected

PatternFunctionFrequency
Abmaj7 -> Eb7Setup (Major Key)1
Gm7b5 -> C7b9Setup (Minor Key)1
C7b9 -> Fm7Resolution (Minor)1
Db7#11 -> Abmaj7Resolution (Major)1
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1

Harmonic Highlights

  • Employs minor ii-V-i motion (Gm7b5 - C7b9 - Fm7) to provide a dark, relative-minor contrast within the primary Ab major tonality.
  • Utilizes chromatic subV/I substitutions (A7#11 to Abmaj7), adding sophisticated Lydian Dominant tension to the resolutions.
  • Incorporates non-functional side-slipping dominant chords, such as Db7#11 and B7, which act as coloristic passing tones or secondary approaches.
  • Features a shifting harmonic rhythm that oscillates between diatonic stability and rapid-fire chromaticism typical of post-bop composition.

Improvisation Focus Ab Major Bebop scale integrated with Lydian Dominant (Mixo #11) logic over non-diatonic substitutions.

Difficulty Rating 4/5 โ€” The combination of 3/4 meter and rapid navigation through altered chromatic substitutions requires advanced melodic fluency and harmonic awareness.


๐Ÿ“š Standard Available in:

The Real Book - Volume II
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