Chord Distribution Analysis

Chord SymbolCountFrequency
Cm7719.4%
F7719.4%
Bb638.3%
Gm738.3%
Bbmaj738.3%
Eb725.6%
Dm725.6%
G725.6%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)7
F7 -> Bbmaj7Resolution (Major)3
Bbmaj7 -> Eb7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
G7 -> Cm7Resolution (Minor)2
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gm7Resolution (Minor)1
Em7b5 -> A7Setup (Minor Key)1
A7 -> Dmaj7Resolution (Major)1

Harmonic Highlights:

  • Features conventional I-vi-ii-V and iii-VI-ii-V progressions in Bb major.
  • Strong tonicization of the relative minor (G minor) via an Am7b5 - D7b9 - Gm7 iiø7-V7-i progression.
  • Incorporates a distinct tonicization of the iii chord (D minor) with Em7b5 - A7 (iiø7-V7/iii).
  • Utilizes a distinctive Eb7 (IV7) resolution to Dm7 (iii chord), creating a unique color within the progression.

Improvisation Focus: Navigating temporary minor key centers and associated iiø7-V7 changes.

Difficulty Rating: 3 (Intermediate). Requires comfortable understanding and application of major key harmony alongside significant minor key tonicizations and secondary dominants.