Chord Distribution Analysis

Chord SymbolCountFrequency
Gm7921.4%
C7921.4%
Dm7716.7%
Fmaj7511.9%
F637.1%
D724.8%
Bbmaj712.4%
Bm7b512.4%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)9
C7 -> Fmaj7Resolution (Major)4
D7 -> Gm7Resolution (Minor)2
Bm7b5 -> E7Setup (Minor Key)1
E7 -> Am7Resolution (Minor)1
Am7 -> D7Setup (Major Key)1
Em7b5 -> A7b9Setup (Minor Key)1
A7b9 -> Dm7Resolution (Minor)1
Dm7 -> G7Setup (Major Key)1

Harmonic Highlights:

  • Repeated II-V-I progression (Dm7-Gm7-C7-Fmaj7) firmly establishes and reinforces the F major tonality.
  • The F6 chord variation substitutes Fmaj7, a common jazz embellishment often used at phrase endings.
  • A iiø7-V7 progression (Bm7b5-E7) temporarily tonicizes the Am7 (iii chord), creating a brief secondary dominant function within the F major context.
  • The Am7-D7-Gm7-C7 section functions as a clear iii-VI-ii-V progression, extending the dominant motion towards the final tonic.

Improvisation Focus: F Major Scale.

Difficulty Rating: 3/5. The tune features standard ii-V-I progressions with a common temporary tonicization, requiring solid grasp of diatonic harmony and modes.