Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7814.3%
Ebmaj7610.7%
Bb758.9%
Abmaj747.1%
Gm7b535.4%
Db735.4%
Cm735.4%
C7b1323.6%

Key Patterns Detected

PatternFunctionFrequency
Bb7 -> Ebmaj7Resolution (Major)3
Fm7 -> Bb7Setup (Major Key)3
Gm7b5 -> C7b13Setup (Minor Key)2
C7 -> Fm7Resolution (Minor)2
Abm7 -> Db7Setup (Major Key)2
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2
Gm7b5 -> C7#9Setup (Minor Key)1
C7#9 -> Fm7Resolution (Minor)1
Abmaj7 -> Db7Setup (Major Key)1

Harmonic Highlights

  • Utilizes a prominent minor ii-V-I turnaround (Gm7b5 – C7alt – Fm7) to tonicize the ii chord, adding sophisticated tension compared to a standard diatonic progression.
  • Incorporates “backdoor” subdominant minor resolutions (Abm7 – Db7) that provide a smooth chromatic transition back to the Ebmaj7 tonic.
  • Employs secondary dominant chains, such as Bbm7 – Eb7, to facilitate a brief but effective modulation toward the subdominant Abmaj7.
  • Features chromatic side-slipping (B7 to Bb7) to create melodic interest and tension within the primary V7 turnaround.

Improvisation Focus Navigating minor ii-V-I cells using the Locrian #2 and Altered scales to address the frequent secondary dominant resolutions.

Difficulty Rating 3/5: The tune requires clear navigation of minor-key functional harmony and “backdoor” resolutions within a standard AABA structure.


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The Real Book - Volume VI
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