Chord Distribution Analysis

Chord SymbolCountFrequency
Dm111642.1%
Cm7513.2%
Dm7410.5%
Bbm737.9%
Fmaj712.6%
Fm712.6%
Bb7#5#912.6%
Ebmaj712.6%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7#5#9Setup (Major Key)1
Bb7#5#9 -> Ebmaj7Resolution (Major)1
Ebm7 -> Ab7#5#9Setup (Major Key)1
Ab7#5#9 -> Dbmaj7Resolution (Major)1
G7#5#9 -> Cm7Resolution (Minor)1
A7b9#5 -> Dm11Resolution (Minor)1

Harmonic Highlights

  • The composition utilizes an extended Dm11 pedal point, establishing a D Dorian modal foundation before transitioning into complex functional harmony.
  • Features parallel planing of minor 7th chords (Dm7–Cm7–Bbm7), creating a chromatic “side-slipping” effect that moves away from the initial tonal center.
  • Employs descending sequential II-V-I progressions (Fm7–Bb7–Ebmaj7 followed by Ebm7–Ab7–Dbmaj7), requiring rapid navigation of remote key centers.
  • Incorporates altered dominants (G7#5#9) to provide maximum harmonic tension before resolving back to the tonic or bridge sections.

Improvisation Focus Navigating descending sequential II-V-I patterns through rapid key changes.

Difficulty Rating 4/5. The contrast between static modal sections and fast-moving, non-diatonic sequences requires advanced harmonic fluency and precise melodic targeting.