Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7614.0%
Em749.3%
Am737.0%
G737.0%
Gm724.7%
C724.7%
A724.7%
Ebm724.7%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)3
Gm7 -> C7Setup (Major Key)2
Em7 -> A7Setup (Major Key)2
A7 -> Dm7Resolution (Minor)2
F#m7 -> B7Setup (Major Key)1
B7 -> Em7Resolution (Minor)1
Ebm7 -> Ab7Setup (Major Key)1
Bm7b5 -> E7Setup (Minor Key)1
E7 -> Am7Resolution (Minor)1
Am7 -> D7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1
Bm7b5 -> E7b9Setup (Minor Key)1
E7b9 -> Am7Resolution (Minor)1
C7 -> Fmaj7Resolution (Major)1
Fmaj7 -> Bb7Setup (Major Key)1

Harmonic Highlights

  • Utilizes sequential ii-V chains (Gm7-C7, F#m7-B7, Em7-A7) that briefly tonicize remote keys, requiring the soloist to shift tonal centers rapidly.
  • Employs chromatic “side-slipping” via the Ebm7-Ab7 sequence, which acts as a tritone-related substitution or a chromatic approach to the Dm7 tonic.
  • Features a sophisticated minor ii-V-i turnaround (Bm7b5-E7-Am7) to navigate the transition between the D minor tonic and the relative major/dominant regions.

Improvisation Focus Targeting 3rds and 7ths to outline voice-leading transitions across the frequent, non-diatonic ii-V sequences.

Difficulty Rating 3/5: While the tempo is often moderate, the density of key center shifts requires a solid grasp of rapid ii-V-I mental transposition.


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The Real Book - Volume II
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