Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7412.9%
Db7412.9%
C7b9412.9%
Gm7b539.7%
Ab739.7%
B726.5%
Bb726.5%
Eb726.5%

Key Patterns Detected

PatternFunctionFrequency
Gm7b5 -> C7b9Setup (Minor Key)3
C7b9 -> Fm7Resolution (Minor)3
Cm7 -> F7b9Setup (Major Key)1
F7b9 -> Bbmaj7Resolution (Major)1
Ebm7 -> Ab7Setup (Major Key)1
Ab7 -> Dbmaj7Resolution (Major)1
C7b9 -> Fm69Resolution (Minor)1

Harmonic Highlights

  • Employs a bVI7 (Db7) functioning as a tritone substitute or blues-inflected neighbor chord within the F minor ii-V-I framework.
  • Features a bridge utilizing a rapid cycle of dominants (B7-Bb7-Eb7-Ab7-Db7) that creates chromatic tension before resolving toward Bb major.
  • Incorporates a temporary modulation to the IV major (Bbmaj7) via a secondary ii-V (Cm7-F7b9), providing a bright contrast to the dark F minor tonality.
  • Utilizes side-slipping dominant motions that characterize the sophisticated hard-bop transition between the A and B sections.

Improvisation Focus The interplay between the F Minor Blues scale and the F Melodic Minor scale to navigate the V7b9 alterations.

Difficulty Rating 3/5: The tune requires navigating rapid dominant cycles in the bridge and precise voice-leading over minor-key ii-V-I progressions.