Chord Distribution Analysis

Chord SymbolCountFrequency
Fm71829.0%
Bb71219.4%
Gm769.7%
Cm769.7%
E0758.1%
Ebmaj746.5%
Eb723.2%
Abmaj723.2%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)10
Bb7 -> Ebmaj7Resolution (Major)3
Bb7 -> Fm7Resolution (Minor)2
Eb7 -> Abmaj7Resolution (Major)2
Dm7b5 -> G7b13Setup (Minor Key)1
G7b13 -> Cm7Resolution (Minor)1
Bbm7 -> Eb7Setup (Major Key)1
C7b13 -> Fm7Resolution (Minor)1

Harmonic Highlights

  • The progression features a persistent ii-V tension in Eb Major, utilizing Fm7 and Bb7 to delay resolution to the tonic Ebmaj7.
  • Inclusion of E°7 acts as a chromatic secondary leading-tone chord (vii°/ii), providing a sophisticated bridge between the tonic-area Gm7 and the supertonic Fm7.
  • The movement from Abmaj7 to Bb7 showcases a traditional IV to V transition, typical of the ballad’s romantic, lyrical character.
  • Frequent cycling through ii-V patterns in closely related keys creates a modal ambiguity between the F minor focus and the Eb major resolution.

Improvisation Focus F Dorian and Eb Major scales, emphasizing chord-tone targeting to navigate the chromatic diminished passing tones.

Difficulty Rating 3/5: While the ballad tempo is manageable, the dense harmonic rhythm and frequent ii-V cycles require precise voice leading and melodic awareness.


📚 Standard Available in:

The Real Book - Volume II
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