Chord Distribution Analysis

Chord SymbolCountFrequency
F7925.7%
Bb7411.4%
Ab7411.4%
Gb7411.4%
Bb6411.4%
G7411.4%
Cm725.7%
D7#925.7%

Key Patterns Detected

PatternFunctionFrequency
G7 -> Cm7Resolution (Minor)2
Cm7 -> F7Setup (Major Key)2

  • Harmonic Highlights:

    • Employs a descending sequence of dominant 7th chords (Bb7, Ab7, Gb7, F7), creating significant chromatic tension and brief polytonal shifts.
    • Integrates standard II-V-I progressions (Cm7, F7) within the Bb major key center, often utilizing secondary dominants (G7 to Cm7).
    • Features an extended cycle of dominant 7#9 chords (D7#9, G7, C7#9, F7) moving in descending perfect fifths, maintaining harmonic drive with altered color.
  • Improvisation Focus: Altered dominant scale.

  • Difficulty Rating: 4 (Advanced Intermediate). The rapid, non-diatonic dominant chord changes and frequent alterations demand advanced harmonic awareness and fingerboard knowledge.