Chord Distribution Analysis

Chord SymbolCountFrequency
Gm7919.1%
Fmaj7714.9%
C7714.9%
Am736.4%
Bb724.3%
F624.3%
Dm724.3%
G724.3%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)7
C7 -> Fmaj7Resolution (Major)5
Fmaj7 -> Bb7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
Bb7 -> Fmaj7Resolution (Major)1
Bm7b5 -> E7b9Setup (Minor Key)1
E7b9 -> Am7Resolution (Minor)1
E7sus -> Am7Resolution (Minor)1
Am7 -> D7b13Setup (Major Key)1
D7b13 -> GmResolution (Minor)1
Em7b5 -> A7b9Setup (Minor Key)1
A7b9 -> Dm7Resolution (Minor)1
G7 -> Dm7Resolution (Minor)1
Am7 -> D7Setup (Major Key)1
D7 -> Gm7Resolution (Minor)1

Harmonic Highlights

  • Employs standard ii-V-I cadences in F major, utilizing “back-door” dominant movement via Bb7 (IV7) and Db7 (bVI7) to provide a bluesy, sophisticated resolution to the tonic.
  • Features a secondary ii-V-i progression (Bm7b5 - E7b9 - Am7) that briefly tonicizes the relative minor, creating a momentary shift in tonal color.
  • Uses suspended dominant chords (C7sus) and dominant cycles to prolong harmonic tension before returning to the home key of F major.

Improvisation Focus Guide tone navigation through the ii-V-I cycles to emphasize the 3rds and 7ths of the shifting secondary dominants.

Difficulty Rating 2: The predictable AABA structure and clear tonal centers make it accessible for beginners, though the brief excursion to A minor requires basic knowledge of minor-key ii-V-i’s.


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The Real Book - Volume I
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