Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7b5312.5%
G7b1328.3%
Fm728.3%
Ebmaj728.3%
G728.3%
Abmaj7#1114.2%
Gbmaj7#1114.2%
Em714.2%

Key Patterns Detected

PatternFunctionFrequency
Dm7b5 -> G7b13Setup (Minor Key)2
Em7 -> A7Setup (Major Key)1
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebmaj7Resolution (Major)1
Dm7b5 -> G7Setup (Minor Key)1
G7 -> Cm7Resolution (Minor)1
Abm7 -> Db7Setup (Major Key)1
Fm7 -> Bb7#5Setup (Major Key)1
Bb7#5 -> Ebmaj7Resolution (Major)1

Harmonic Highlights:

  • The 14-bar form breaks standard 16-bar phrasing expectations, necessitating a strong internal pulse and awareness of the condensed structure.
  • Parallel Lydian movement occurs between Abmaj7#11 and Gbmaj7#11, creating a modern, floating modal quality that briefly suspends functional C minor tonality.
  • Sequential ii-V movements (Em7-A7 to Fm7-Bb7) act as a modulating bridge, tonicizing the relative major (Eb) via a rapid cycle-of-fourths approach.
  • The turnaround utilizes a chromatic dominant descent (G7-Gb7-F7) followed by a Lydian-inflected Emaj7#11, creating dense harmonic tension before resolving to the head.

Improvisation Focus: The C Melodic Minor scale and its modes (specifically Altered and Lydian Dominant) for navigating non-diatonic substitutions.

Difficulty Rating: 4/5: The asymmetrical 14-bar structure and rapid chromatic ii-V sequences require advanced formal awareness and harmonic agility.