Chord Distribution Analysis

Chord SymbolCountFrequency
Dbmaj7410.0%
Eb9410.0%
Ab13b937.5%
Bbmaj725.0%
Bb7#525.0%
Amaj725.0%
Gm7b525.0%
C7b925.0%

Key Patterns Detected

PatternFunctionFrequency
Gm7b5 -> C7b9Setup (Minor Key)2
C7b9 -> Fm6Resolution (Minor)1
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gm6Resolution (Minor)1
C7b9 -> Fmaj7Resolution (Major)1
Db7#11 -> Gbmaj7Resolution (Major)1
Ebm7 -> Ab7Setup (Major Key)1

Harmonic Highlights

  • Non-functional chromatic mediant shifts: The movement from Dbmaj7 to Bbmaj7 bypasses standard functional harmony through tertiary relationships.
  • Chromatic Planing: The descending parallel major 7th chords (Fmaj7 - Emaj7 - Ebmaj7) exemplify the impressionistic Ellington-Strayhorn signature.
  • Minor ii-V-i Anchors: Traditional Gm7b5 - C7b9 - Fm6 sequences provide tonal stability amidst frequent, distant modulations.

Improvisation Focus Db Lydian Scale and Chromatic Voice Leading.

Difficulty Rating 4/5: The rapid modulations between distant keys and non-standard chord resolutions require advanced harmonic navigation and precise ear training.


๐Ÿ“š Standard Available in:

The Real Book - Volume III
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