Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7818.6%
Bb7818.6%
Ebmaj749.3%
C749.3%
Gm737.0%
Ebmaj7/D24.7%
Cm724.7%
Ab724.7%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)8
Bb7 -> Ebmaj7Resolution (Major)4
C7 -> Fm7Resolution (Minor)4
Gm7 -> C7Setup (Major Key)3
Ebmaj7 -> Ab7Setup (Major Key)2
Am7b5 -> D7b13Setup (Minor Key)2
D7b13 -> Gmaj7Resolution (Major)1
Am7 -> D7Setup (Major Key)1
D7 -> Gmaj7Resolution (Major)1
Gmaj7 -> C7Setup (Major Key)1
Bb7 -> Fm7Resolution (Minor)1
D7b13 -> Gm7Resolution (Minor)1

Harmonic Highlights

  • Standard ii-V-I cycles in Eb Major establish a stable diatonic framework for the primary theme.
  • A modulation to the III (G Major) is executed via a minor ii-V (Am7b5โ€“D7b13), shifting the tonal center away from the home key.
  • Secondary dominants (C7) and dominant substitutions (Ab7) provide chromatic tension that resolves to the ii chord (Fm7).
  • Stepwise descending bass motion (Ebโ€“Dโ€“C) facilitates smooth voice leading between the tonic and the submediant.

Improvisation Focus Managing the transition between Eb Major and the G Major modulation using chord-tone targeting.

Difficulty Rating 3/5: The progression is largely diatonic but requires precise navigation of the temporary modulation to a remote key center.


๐Ÿ“š Standard Available in:

The Real Book - Volume V
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