Chord Distribution Analysis

Chord SymbolCountFrequency
Bb1020.0%
Eb612.0%
F7612.0%
Bb/D48.0%
E048.0%
E0736.0%
C736.0%
Bb7/D24.0%

Key Patterns Detected

PatternFunctionFrequency
D7/A -> GmResolution (Minor)2

  • Strategic use of the vii°7/V chord (E07) as a chromatic diminished passing tone between IV and V7 (Eb - E07 - F7).
  • Standard I - V7/vi - vi progression (Bb - D7/A - Gm) for a classic secondary dominant resolution.
  • A compelling chromatic dominant chain vi - bVI7 - V7/V - V7sus (Gm - Eb7 - C7 - F7sus), building tension towards the tonic.

Improvisation Focus: Bb Blues scale, emphasizing characteristic blues inflections and melodic patterns over the progression.

Difficulty Rating: 3 (Intermediate) - The inclusion of chromatic diminished chords and secondary dominant chains requires a solid understanding of functional harmony beyond basic diatonic movements.