Chord Distribution Analysis

Chord SymbolCountFrequency
Eb71127.5%
Bbm7922.5%
Fm7410.0%
Bb737.5%
Eb625.0%
F925.0%
Eb0725.0%
Ebmaj712.5%

Key Patterns Detected

PatternFunctionFrequency
Bbm7 -> Eb7Setup (Major Key)9
Eb7 -> Bbm7Resolution (Minor)8
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebmaj7Resolution (Major)1
Fm7 -> C7b13Setup (Major Key)1
Fm7 -> C7Setup (Major Key)1

Harmonic Highlights

  • Uses standard diatonic ii-V-I progressions (Fm7 - Bb7 - Ebmaj7) to firmly establish the Eb major tonal center.
  • Employs the VI7 chord (C7b13) as a secondary dominant leading to the ii (Fm7/F9), adding sophisticated chromatic tension to the turnaround.
  • The bridge shifts to the subdominant area (Ab major) via repetitive ii-V sequences (Bbm7 - Eb7), a classic swing-era modulation.
  • Incorporates diminished passing chords (Eb°7) to bridge tonic and dominant functions smoothly within the rhythm section.

Improvisation Focus Eb Major Bebop scale for the A sections, transitioning to Ab Mixolydian/Bebop to navigate the bridge’s ii-V cycles.

Difficulty Rating 2/5: The harmony relies on predictable ii-V-I patterns and standard modulations, making it a foundational study for swing-style improvisation.


📚 Standard Available in:

The Real Book - Volume VI
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