Chord Distribution Analysis

Chord SymbolCountFrequency
Bb7923.1%
Ebmaj7512.8%
Fm7512.8%
C737.7%
Abmaj737.7%
B725.1%
Ebm712.6%
Ab712.6%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)5
Bb7 -> Ebmaj7Resolution (Major)4
C7 -> Fm7Resolution (Minor)3
Ebmaj7 -> Bb7Setup (Major Key)2
Ebm7 -> Ab7Setup (Major Key)1
Em7 -> A7Setup (Major Key)1
Cm7 -> F7Setup (Major Key)1
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1
Abmaj7 -> Db7Setup (Major Key)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights

  • Utilizes secondary dominants (C7, F7) to create strong functional resolutions to the ii (Fm7) and V (Bb7) chords.
  • Features a shift to the parallel minor via a ii-V (Ebm7-Ab7), functioning as a “back-door” sequence common in the swing era.
  • Employs rapid, descending ii-V cycles (Em7-A7 to Cm7-F7) that briefly tonicize remote areas before returning to the Eb major home key.

Improvisation Focus Eb Major Bebop scale, emphasizing guide-tone transitions (3rds and 7ths) to navigate the frequent secondary dominants.

Difficulty Rating 3/5 – The harmonic structure is largely diatonic but requires precise timing to navigate the quick, non-tonal ii-V sequences effectively.


📚 Standard Available in:

The Pat Metheny Real Book
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