Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7717.1%
Bb7717.1%
Ebmaj737.3%
Cm737.3%
Gb0724.9%
Bbm724.9%
Eb724.9%
Abmaj724.9%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)7
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2
Bb7 -> Ebmaj7Resolution (Major)2
Bmaj7 -> E7#11Setup (Major Key)1
Ebm7 -> Ab7Setup (Major Key)1
Ab7 -> Dbm7Resolution (Minor)1
Dbm7 -> Gb7Setup (Major Key)1
C7 -> Fm7Resolution (Minor)1

Harmonic Highlights

  • Frequent use of ii-V-I progressions, notably Bbm7-Eb7-Abmaj7 (a ii-V-I in the subdominant key).
  • Employs passing diminished chords like Gb07 and A07, adding chromatic color and tension between diatonic chords.
  • Features a striking modulation to remote keys via descending ii-V sequences (Ebm7-Ab7 to Db, Dbm7-Gb7 to B), showcasing advanced harmonic movement.
  • The Bmaj7-E7#11 movement provides a significant chromatic shift and dominant function leading into the modulating section.

Improvisation Focus Accurately outlining chord tones and applying appropriate dominant scales across frequent, often remote, modulations.

Difficulty Rating 4 - The extensive use of non-diatonic chords and rapid modulations to distant keys demands a high level of harmonic awareness.