Chord Distribution Analysis

Chord SymbolCountFrequency
Gm71120.4%
C71120.4%
F6713.0%
Dm7611.1%
Fmaj723.7%
D723.7%
Eb723.7%
Ab611.9%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)11
C7 -> Fmaj7Resolution (Major)2
D7 -> Gm7Resolution (Minor)2
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1
G7 -> Cmaj7Resolution (Major)1
Cm7 -> F7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1
Bbm6 -> Eb7Setup (Major Key)1

Harmonic Highlights

  • Persistent I–vi–ii–V7 cycles in F Major create a classic diatonic foundation, typical of the Great American Songbook’s “rhythm changes” vocabulary.
  • Abrupt modulation to the â™­III (Ab Major) via a Bbm7–Eb7–Ab6 sequence provides a sophisticated shift to the parallel minor’s relative major.
  • Functional use of the secondary dominant V7/ii (D7) creates a strong chromatic resolution to Gm7, facilitating smooth transitions between song sections.

Improvisation Focus Seamless voice-leading through the modulation from F Major to Ab Major.

Difficulty Rating 2/5: The progression is largely diatonic and repetitive, making it highly accessible for beginners to practice standard ii-V-I patterns and basic key shifts.


📚 Standard Available in:

The Real Book - Volume I
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