Chord Distribution Analysis

Chord SymbolCountFrequency
Dbmaj9510.2%
Ab13b936.1%
Dmaj736.1%
E24.1%
Eb624.1%
Abmaj724.1%
D7#912.0%
F7#5#912.0%

Key Patterns Detected

PatternFunctionFrequency
Ab7b9#5 -> Dbmaj7Resolution (Major)1
Ab7#11 -> Dbmaj9Resolution (Major)1
Em7b5 -> A7#11Setup (Minor Key)1
A7#11 -> Dmaj7Resolution (Major)1
Dm7 -> G7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1
Cmaj7 -> G7/BSetup (Major Key)1
Fm11 -> Bb7#11Setup (Major Key)1
Bb7#11 -> Ebm7b5Resolution (Minor)1
Ab7b9#11 -> Dbmaj9Resolution (Major)1

Harmonic Highlights

  • Employs a high density of altered dominant chords (e.g., F7#5#9, Bb7b9#5, Ab7#11) to generate intense harmonic color and tension resolution to Db major.
  • Features significant chromaticism and non-diatonic chord movements (e.g., Dmaj7, Emaj7, F#m7b5) that extend beyond typical functional harmony.
  • Alternates between strong ii-V-I resolutions (Ebm9-Ab13b9-Dbmaj9) and unexpected harmonic shifts, preventing predictable progressions.
  • Frequent use of tritone substitutions and secondary dominants adds complexity to the underlying harmonic structure.

Improvisation Focus The Altered Scale (Super Locrian) is essential for navigating the numerous dominant 7th chords with b9, #9, and #5 alterations.

Difficulty Rating 5 (Advanced) – The intricate altered dominant voicings, rapid chromatic shifts, and non-functional harmonic movements demand highly developed harmonic understanding and technical facility.