Chord Distribution Analysis

Chord SymbolCountFrequency
Dm748.7%
Eb736.5%
Gm736.5%
Fmaj724.3%
Bbm724.3%
Dm7b524.3%
Bb7#1124.3%
Amaj724.3%

Key Patterns Detected

PatternFunctionFrequency
Bbm7 -> Eb7Setup (Major Key)2
Fm7 -> Bb7Setup (Major Key)2
Cm7 -> F7Setup (Major Key)2
D7 -> Gm7Resolution (Minor)1
Ab7 -> Dbmaj7Resolution (Major)1
Dm7 -> G7Setup (Major Key)1
C#m7 -> F#7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1
A7#5 -> Dm7Resolution (Minor)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights

  • Uses “constant structure” relationships, such as the major 7th shift from Fmaj7 to Amaj7, bypassing traditional functional expectations.
  • Employs non-resolving ii-V chains (Bbm7-Eb7, Am7-D7) that create harmonic suspension rather than standard dominant tension.
  • Incorporates Lydian Dominant colors (Bb7#11, Eb7#11) as static tonicized sonorities rather than functional chords.
  • Features rapid, distal modulations, frequently pivoting between Bb major and D major areas via chromatic ii-V movements.

Improvisation Focus Motivic development and common-tone connectivity across shifting modal centers.

Difficulty Rating 4/5 โ€” The lack of traditional functional resolutions and the rapid modulation between distant keys require advanced harmonic fluency and ear training.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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