Chord Distribution Analysis

Chord SymbolCountFrequency
F#m759.3%
Dbmaj747.4%
Amaj747.4%
Ab747.4%
Abm735.6%
Db735.6%
A735.6%
B735.6%

Key Patterns Detected

PatternFunctionFrequency
Abm7 -> Db7Setup (Major Key)3
F#m7 -> B7Setup (Major Key)3
Ebm7b5 -> Ab7b9Setup (Minor Key)2
Ab7b9 -> Dbmaj7Resolution (Major)2
B7 -> Emaj7Resolution (Major)2
Ebm7 -> Ab7Setup (Major Key)2
Ab7 -> Dbmaj7Resolution (Major)2
F#m7 -> B7altSetup (Major Key)1
B7alt -> Emaj7Resolution (Major)1
Gm7 -> C7Setup (Major Key)1
B7 -> Em7Resolution (Minor)1
Em7 -> A7Setup (Major Key)1

Harmonic Highlights

  • Employs rapid ii-V-I modulations that shift tonal centers every two beats, starting with a minor ii-V resolving to a major tonic (Ebm7b5–Ab7b9–Dbmaj7).
  • Features a deceptive chromatic descent of dominant 7th chords (F7–Bb7–A7–Ab7–G7) which prioritizes linear motion over functional circle-of-fifths resolution.
  • Utilizes pivot chords to bridge distant keys, such as shifting from the Db major landscape into E major via F#m7–B7.

Improvisation Focus Continuous voice-leading and guide-tone navigation through rapid-fire changes.

Difficulty Rating 5/5 — The extreme harmonic density and erratic modulations require an advanced command of bebop vocabulary and instant mental transposition.