Chord Distribution Analysis

Chord SymbolCountFrequency
F6922.5%
B07820.0%
Bb6820.0%
F6/A615.0%
C737.5%
G725.0%
Cm712.5%
F712.5%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)1
D7b9 -> Gm7b5Resolution (Minor)1
Gm7b5 -> C7Setup (Minor Key)1

Harmonic Highlights

  • Utilizes a recurring $#IV^\circ7$ ($B^\circ7$) to $IV6$ ($Bb6$) chromatic resolution, creating the “smooth” bluesy tension and release characteristic of the Goodman/Christian era.
  • Employs $F6/A$ as a tonic substitute to facilitate stepwise bass motion, connecting the subdominant area back to the tonic through elegant voice leading.
  • Features a standard $V7/V$ ($G7$) to $V7$ ($C7$) secondary dominant turnaround, reinforcing the F major key center amidst the chromatic passing chords.
  • Incorporates a $ii-V$ lead-in to the subdominant ($Cm7$ – $F7$ – $Bb6$), a classic swing device used to pivot between the A and B sections.

Improvisation Focus

F Major Blues Scale (emphasizing the $B/Cb$ blue note to bridge the diminished and diatonic harmonies).

Difficulty Rating

2/5. The predictable swing pulse and repetitive $ii-V$ cycles are beginner-friendly, though the diminished-to-major shifts require basic knowledge of chromatic targeting.