Chord Distribution Analysis

Chord SymbolCountFrequency
Fmaj71025.6%
Gm7923.1%
F/A25.1%
Ab0725.1%
Gm625.1%
Eb/G25.1%
C7b925.1%
Am7b525.1%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7b9Setup (Major Key)2
C7b9 -> Fmaj7Resolution (Major)1
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gm7Resolution (Minor)1
Gm7 -> C7Setup (Major Key)1
C7 -> Fmaj7Resolution (Major)1

Harmonic Highlights

  • The progression utilizes an Ab°7 chromatic passing chord (#ii°7) to transition from F/A to Gm6, functioning as a rootless secondary dominant (D7b9) targeting the ii chord.
  • Modal interchange is introduced via the Eb/G chord, providing a bVII subdominant flavor borrowed from F Mixolydian.
  • The structure features a very slow harmonic rhythm, with the Imaj7 and iim7 chords often sustained for four to five measures, emphasizing horizontal melodic development.
  • The C7b9 creates a strong V-I tension-resolution pattern by utilizing the b9 (Db) to lead voice-leading toward the fifth of the Fmaj7.

Improvisation Focus F Major / Ionian scale.

Difficulty Rating 2/5. The slow harmonic pace and primarily diatonic structure provide a clear, accessible framework for novice improvisers.


📚 Standard Available in:

The Real Vocal Book - Volume II
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