Chord Distribution Analysis

Chord SymbolCountFrequency
Ab7#11420.0%
Ebmaj7210.0%
A9210.0%
Db715.0%
Eb715.0%
Ab715.0%
D7b515.0%
Dbm715.0%

Key Patterns Detected

PatternFunctionFrequency
Ebmaj7 -> Ab7#11Setup (Major Key)1
Dbm7 -> Gb7Setup (Major Key)1
Fm7b5 -> Bb7b5Setup (Minor Key)1
Bm7 -> E7Setup (Major Key)1

Harmonic Highlights

  • Utilizes a highly modified blues structure that replaces functional tonic-dominant resolutions with “side-slipping” II-V chains (e.g., Bm7-E7 transitioning to Ab7#11).
  • Employs Ab7#11 as a stable, non-resolving tonic color, characteristic of Dolphy’s post-bop and avant-garde vocabulary.
  • Features frequent “back-door” resolutions and tritone substitutions, such as the D7b5 moving to Ebmaj7 and the Dbm7-Gb7 sequence.
  • Blurs the lines between Ab major and Ab Mixolydian through the constant interplay of Ebmaj7 and dominant-structured extensions.

Improvisation Focus Ab Lydian Dominant (Ab-Bb-C-D-Eb-F-Gb) to capture the signature #11 sound while navigating the chromatic shifts.

Difficulty Rating 4/5 – The non-diatonic II-V insertions and the angular nature of the dominant extensions require advanced modal fluency and precise melodic targeting.


📚 Standard Available in:

The Real Book - Volume II
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