Chord Distribution Analysis

Chord SymbolCountFrequency
F6922.5%
B07820.0%
Bb6820.0%
F6/A615.0%
C737.5%
G725.0%
Cm712.5%
F712.5%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)1
D7b9 -> Gm7b5Resolution (Minor)1
Gm7b5 -> C7Setup (Minor Key)1

Harmonic Highlights:

  • The prominent use of a #IVdim7 (B07) that resolves chromatically down to the IV major (Bb6), creating a signature smooth tension and release.
  • A classic V7/V (G7) leading to the V7 (C7), building dominant tension towards the tonic’s dominant.
  • A clear ii-V-I progression (Cm7-F7-Bb6) indicating a brief tonicization of the subdominant key (Bb major).

Improvisation Focus: F Major Blues Scale.

Difficulty Rating: 3 (Intermediate) – Requires understanding of ii-V-I progressions in multiple keys, secondary dominants, and specific chromatic diminished chord resolutions.