Chord Distribution Analysis

Chord SymbolCountFrequency
Eb6625.0%
Fm7416.7%
Bb7416.7%
Gm312.5%
C7312.5%
Cm28.3%
Am7b514.2%
D7b914.2%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)4
C7 -> Fm7Resolution (Minor)2
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> GmResolution (Minor)1
Gm -> C7Setup (Major Key)1

Harmonic Highlights

  • The A sections utilize a repetitive ii-V-I progression in Eb major (Fm7-Bb7-Eb6), establishing a stable and predictable diatonic foundation.
  • The bridge shifts toward the relative minor (Cm) and its minor v (Gm), introducing a modal contrast to the bright tonic sections.
  • A secondary minor ii-V (Am7b5-D7b9) specifically targets Gm, necessitating a temporary shift in tonal center to the vi chord.
  • The use of C7 acts as a secondary dominant (V/ii), effectively cycling the progression back to the starting Fm7 chord.

Improvisation Focus The Eb Major Pentatonic scale maintains the tune’s “western” melodic character, supplemented by G Harmonic Minor for the bridge’s ii-V-i resolution.

Difficulty Rating 2/5: The harmonic structure is largely diatonic and repetitive, with only the brief minor-key modulation in the bridge requiring significant harmonic awareness.


📚 Standard Available in:

The Real Book - Volume V
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