Chord Distribution Analysis

Chord SymbolCountFrequency
C7917.0%
Fmaj7611.3%
Gm7611.3%
Bbmaj7611.3%
F59.4%
F659.4%
F735.7%
F7#535.7%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)6
C7 -> Gm7Resolution (Minor)3
Fmaj7 -> C7Setup (Major Key)2
D7b13 -> Gm7Resolution (Minor)1
F7#5 -> Bbmaj7Resolution (Major)1
F7 -> Bbmaj7Resolution (Major)1
C7 -> Fmaj7Resolution (Major)1

Harmonic Highlights

  • Employs a secondary dominant V/ii (D7b13) to create a chromatic bridge between the tonic F and the supertonic Gm7.
  • Utilizes extended, repetitive ii-V7 cycles (Gm7-C7) that establish a strong swing-era rhythmic and functional foundation.
  • Features a modulation to the subdominant Bb via an F7 (I7) pivot chord, a classic device for structural contrast in AABA-adjacent forms.
  • Uses tonic prolongation with alternating F6 and Fmaj7 voicings to provide harmonic variety over static melodic sections.

Improvisation Focus F Major Pentatonic and Bebop scales, specifically targeting the F# leading tone when navigating the D7 to Gm7 resolution.

Difficulty Rating 2/5: The progression follows predictable diatonic patterns and standard secondary dominants, making it highly accessible for developing jazz vocabulary.


πŸ“š Standard Available in:

The Real Book - Volume VI
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