Chord Distribution Analysis

Chord SymbolCountFrequency
Bmaj7416.7%
C#m7312.5%
F#7312.5%
Em728.3%
A728.3%
Dmaj728.3%
C#m7/B28.3%
Bbm714.2%

Key Patterns Detected

PatternFunctionFrequency
C#m7 -> F#7Setup (Major Key)3
Em7 -> A7Setup (Major Key)2
A7 -> Dmaj7Resolution (Major)2
F#7 -> Bmaj7Resolution (Major)2
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1
Gm7 -> C7Setup (Major Key)1
C7 -> Fmaj7Resolution (Major)1

Harmonic Highlights:

  • Rapid, sequential ii-V-I modulations through multiple temporary key centers.
  • Successive target tonic chords (D, Ab, F, B) establish disjunct, non-diatonic relationships, moving beyond simple diatonic progressions.
  • The progression frequently utilizes various root movements for tonic chords, including major thirds (Ab-F) and augmented fourths (D-Ab, F-B).

Improvisation Focus: Adapting scale choices (e.g., Dorian, Mixolydian, Lydian) to each rapidly modulating ii-V-I progression.

Difficulty Rating: 5 (Advanced). Requires extensive harmonic knowledge, technical agility, and quick adaptation to rapidly shifting key centers.