Chord Distribution Analysis

Chord SymbolCountFrequency
Fm9625.0%
Fmaj9416.7%
Bb13/F28.3%
Db7#1128.3%
C7b928.3%
Dm728.3%
Gm728.3%
C728.3%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)2
C7b9 -> Fm9Resolution (Minor)1
C7b9 -> Fmaj7Resolution (Major)1
A7 -> Dm7Resolution (Minor)1
C7 -> Fm9Resolution (Minor)1

Harmonic Highlights

  • The composition centers on modal interchange, frequently oscillating between the parallel tonalities of F major and F minor to create shifting “bossa” moods.
  • The sequence of Db7#11 to C7b9 functions as a bVI7 - V7 movement, acting as a chromatic approach to the dominant while utilizing tritone substitution colors.
  • Persistent use of the F pedal point under Bb13/F provides a stable tonal anchor despite the sophisticated upper-structure extensions.
  • Standard diatonic cycles (vi-ii-V-I) in the latter section are enhanced by a secondary dominant (A7) that facilitates a temporary modulation to the relative minor (Dm7).

Improvisation Focus Parallel Major/Minor switching (F Ionian and F Dorian).

Difficulty Rating 3 (Intermediate); the player must possess the ability to fluidly navigate rapid shifts between major and minor tonic centers while managing altered dominant tensions.