Chord Distribution Analysis

Chord SymbolCountFrequency
Bb71122.4%
Eb6918.4%
Fm7714.3%
C7612.2%
Gb0724.1%
Gm724.1%
Ab624.1%
F724.1%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)5
C7 -> Fm7Resolution (Minor)4
Gm7 -> C7Setup (Major Key)2
Bb7 -> Ebmaj7Resolution (Major)1
G7/D -> CmResolution (Minor)1

  • Chromatic diminished Gb07 (bIII°7) adds tension, often functioning as a substitute for vii°7/ii before Fm7 (ii).
  • Frequent use of secondary dominants, prominently C7 (V/ii) leading to Fm7.
  • Modal mixture is introduced with Abm6 (borrowed from parallel minor) preceding the diatonic Abmaj7 (IVmaj7).
  • A clear tonicization of the relative minor Cm (vi) occurs via the dominant G7/D (V7/vi).

Improvisation Focus: Chord-tone outlining and navigating secondary dominants.

Difficulty Rating: 3 (Intermediate). Features common jazz progressions alongside chromatic harmony and modal mixture, requiring careful navigation.