Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7312.0%
Gm728.0%
C728.0%
Bbmaj728.0%
B0728.0%
F/C28.0%
Bbm7/Db28.0%
Fmaj714.0%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)2
Bbmaj7 -> Eb7Setup (Major Key)1
Am7 -> D7Setup (Major Key)1
Abm7 -> Db7Setup (Major Key)1

Harmonic Highlights

  • Employs a sophisticated descending chromatic bass line (Dm7 - Dm7/C - Bm7b5 - Bbm/maj7), transitioning from the relative minor through subdominant minor textures.
  • Incorporates a C#o7 secondary leading-tone chord to target the Dm7, utilizing diminished tension to bridge diatonic gaps within the F major/Bb major relationship.
  • Features frequent modal interchange via Bbm7/Db and Bbm/maj7, momentarily shifting the tonal palette from major to parallel melodic minor.
  • Uses a #ivo7 (Bo7) as a passing chord to resolve between the IVmaj7 (Bbmaj7) and the tonic in second inversion (F/C), creating a smooth chromatic ascent.

Improvisation Focus F Melodic Minor (specifically targeting the natural 7th over the Bbm/maj7 chords).

Difficulty Rating 4/5: The rapid shifts between functional diatonicism and chromatic modal interchange require advanced voice leading and precise modal substitutions.