Chord Distribution Analysis

Chord SymbolCountFrequency
Bbmaj7917.0%
Ebm/maj7815.1%
F747.5%
G7#923.8%
Cm723.8%
Em7b523.8%
A7#923.8%
Ebmaj7#1123.8%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)1
G7 -> Cm7Resolution (Minor)1
Dm7b5 -> G7#9Setup (Minor Key)1
G7#9 -> Cm7Resolution (Minor)1
Em7b5 -> A7#9Setup (Minor Key)1
A7#9 -> Dmaj7Resolution (Major)1
B7#9 -> Em7Resolution (Minor)1
D7#9 -> Gmaj7Resolution (Major)1
Cm7b5 -> F7Setup (Minor Key)1
F7 -> Bbmaj7Resolution (Major)1

Harmonic Highlights

  • Utilizes a recurring Imaj7 to iv(maj7) oscillation (Bbmaj7 to Ebm/maj7), introducing the Melodic Minor sound as a functional subdominant substitution.
  • Features a chromatic dominant descent (G7#9 - Gb7 - F7), employing Gb7 as a tritone substitution for the VI7 chord to drive toward the dominant.
  • Employs an Eb°7 passing chord to link the subdominant area to the iii-VI-ii-V turnaround, creating a sophisticated bridge between diatonic and chromatic harmony.

Improvisation Focus

  • Melodic Minor (specifically Eb Melodic Minor over Ebm/maj7) to handle the unconventional tonic-to-minor-subdominant transition.

Difficulty Rating

  • 4 (Advanced) because the tune requires navigating specific minor/major colors and rapid chromatic turnarounds that exceed standard bebop vocabulary.