Chord Distribution Analysis

Chord SymbolCountFrequency
Bbm/maj749.8%
Abm/maj749.8%
Db649.8%
C749.8%
B749.8%
Bb724.9%
Ebm724.9%
Ab724.9%

Key Patterns Detected

PatternFunctionFrequency
Bb7 -> Ebm7Resolution (Minor)2
Ebm7 -> Ab7Setup (Major Key)2
B7 -> F#m7Resolution (Minor)1
F#m7 -> B7Setup (Major Key)1
B7 -> Emaj7Resolution (Major)1
F#m7 -> B7altSetup (Major Key)1
Bm7 -> E7Setup (Major Key)1
E7 -> Amaj7Resolution (Major)1
D7 -> Gmaj7Resolution (Major)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights

  • Employs parallel minor-major 7th chords (Bbm/maj7 to Abm/maj7), establishing an impressionistic, “Strayhorn” sound that blurs traditional functional tonality.
  • Utilizes chromatic dominant movements and tritone substitutions (C7 to B7) to transition seamlessly between distant tonal centers.
  • The bridge sequences through rapid ii-V-I progressions in E major and A major, creating a bright, temporary lift away from the Eb minor home key.

Improvisation Focus The Melodic Minor scale, particularly for navigating the specific tensions of the minor-major 7th and altered dominant chords.

Difficulty Rating 4/5: The non-diatonic root movements and sophisticated chord voicings require advanced harmonic knowledge and precise ear training to navigate effectively.


πŸ“š Standard Available in:

The Real Book - Volume I
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