Chord Distribution Analysis

Chord SymbolCountFrequency
Abmaj7416.7%
Eb7416.7%
Dbmaj728.3%
Dbm/maj728.3%
F7#1128.3%
Bbm728.3%
Ab728.3%
C728.3%

Key Patterns Detected

PatternFunctionFrequency
F7#11 -> Bbm7Resolution (Minor)2
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2

Harmonic Highlights:

  • The opening bVIImaj7 - bVIIm/maj7 - Imaj7 progression (Dbmaj7 - Dbm/maj7 - Abmaj7) is a signature Tristano harmonic device, often termed a “backdoor” ii-V.
  • Extensive use of altered dominant chords like F7#11 (V7 of Bbm7) introduces Lydian Dominant tension and color.
  • A prolonged cycle-of-fifths dominant progression (C7, F7, Bb7, Eb7) creates extended harmonic motion and reharmonization opportunities.

Improvisation Focus: Precise navigation of altered dominant scales and arpeggios.

Difficulty Rating: 5 (Advanced). The rapid harmonic rhythm, frequent altered dominants, and extended cycles demand sophisticated theoretical understanding and technical precision.