Chord Distribution Analysis

Chord SymbolCountFrequency
Ebmaj7513.9%
Fm7411.1%
Bb7411.1%
Abmaj7411.1%
Gm738.3%
C738.3%
Eb625.6%
Bbm725.6%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)4
Gm7 -> C7Setup (Major Key)3
Bb7 -> Ebmaj7Resolution (Major)2
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2
C7 -> Fm7Resolution (Minor)1
C7 -> Fmaj7Resolution (Major)1

  • Establishes a foundational II-V-I progression in Eb major (Fm7-Bb7-Ebmaj7) as its primary harmonic identifier.
  • Features a linear descending bass line, such as Ebmaj7 - Ebmaj7/D - Cm7 - Cm7/Bb, adding smooth voice leading and melodic interest.
  • Incorporates striking modal interchange with the use of Abm/maj7 (bIVm/maj7), providing a unique melancholic and chromatic color.
  • Utilizes secondary ii-V progressions (e.g., Gm7-C7) to briefly explore related key areas before returning to the tonic.

Improvisation Focus: Chord-scale theory, emphasizing Eb major modes and adapting to chromatic alterations, particularly with melodic minor over modal interchange chords.

Difficulty Rating: 4 (Advanced) The blend of standard II-V-I progressions with complex modal interchange and secondary dominants requires advanced harmonic understanding for fluent improvisation.