Chord Distribution Analysis

Chord SymbolCountFrequency
Bb7922.0%
Eb614.6%
Eb/Db614.6%
Cm7614.6%
B7614.6%
Eb624.9%
Eb724.9%
Ab724.9%

No obvious ii-V patterns detected.


  • The prominent Eb/Db (functioning as Ab7b9) resolving to Cm7 creates a bVII7 to vi progression, characteristic of Bebop reharmonization.
  • The Cm7 to B7 to Bb7 sequence features a descending chromatic dominant movement, with B7 acting as a temporary dominant or tritone substitute.
  • The shift from Eb to Eb7 then Ab7 introduces a brief tonicization of the IV chord (Ab), common in blues-influenced jazz harmony.

Improvisation Focus: Dominant 7th arpeggios and associated scales (Mixolydian, Altered).

Difficulty Rating: 3. The frequent dominant 7th chords and chromatic movements require precise targeting of extensions and rapid scale adaptation.