Chord Distribution Analysis

Chord SymbolCountFrequency
Eb69516.1%
Bb7412.9%
Eb412.9%
Ab6926.5%
Dbmaj726.5%
Bmaj726.5%
E/Eb26.5%
G7#926.5%

Key Patterns Detected

PatternFunctionFrequency
G7#9 -> Cm7Resolution (Minor)2
Dm7b5 -> G7#9Setup (Minor Key)1
Cm7 -> G7#9Setup (Major Key)1
Cm7 -> F7Setup (Major Key)1

Harmonic Highlights

  • Features non-functional chromatic planing via Dbmaj7 and Bmaj7, acting as sophisticated color substitutions that briefly depart from the Eb tonic.
  • Employs an Eb pedal point with shifting triad upper structures (E/Eb and D/Eb), creating rapid oscillation between Lydian and Phrygian-influenced tensions.
  • Incorporates a standard minor ii-V-i progression (Dm7b5 - G7#9 - Cm7) to tonicize the relative minor (vi), providing a bridge between the modal sections and functional bop vocabulary.
  • Utilizes stable I6/9 and IV6/9 chords to establish a broad, modern jazz harmonic palette rather than traditional dominant-heavy movements.

Improvisation Focus Eb Major/Blues hybrid scales with specific “side-slipping” adjustments for the non-diatonic major 7th chords.

Difficulty Rating 3/5: The tune requires balancing standard hard-bop language with the ability to navigate static pedal points and sudden, non-functional harmonic shifts.