Chord Distribution Analysis

Chord SymbolCountFrequency
Cmaj7818.2%
Dm7715.9%
Gm7511.4%
Fmaj736.8%
A736.8%
Bbmaj724.5%
Em7b524.5%
G724.5%

Key Patterns Detected

PatternFunctionFrequency
A7 -> Dm7Resolution (Minor)3
Em7b5 -> A7Setup (Minor Key)2
E7 -> AmResolution (Minor)1
Gm7 -> C7Setup (Major Key)1
C7 -> Fmaj7Resolution (Major)1
Bm7b5 -> E7b13Setup (Minor Key)1
Dm7 -> G7Setup (Major Key)1
Dm7 -> G7susSetup (Major Key)1

Harmonic Highlights:

  • Establishes the subdominant key (F major) early with a ii-V-I progression (Dm7, Gm7, Fmaj7).
  • Features a sequential chain of secondary dominants, specifically V/V/vi followed by V/vi leading to the tonic minor (B7, E7, Am).
  • Incorporates a distinct minor ii-V-i progression, tonicizing D minor (Em7b5, A7, Dm7).
  • Includes modal interchange with chords like Bbmaj7 (bVII) and F7 (bVII of G or V/Bb).

Improvisation Focus: Navigating temporary tonicizations and secondary dominant resolutions using a chord-scale approach.

Difficulty Rating: 4 (Advanced Intermediate) The frequent temporary modulations and use of non-diatonic chords demand a solid understanding of harmony beyond basic diatonic playing.