Chord Distribution Analysis

Chord SymbolCountFrequency
Cm747.4%
Ebmaj735.6%
Fm735.6%
Eb623.7%
Fm7b523.7%
Bb7b923.7%
Gm7/D23.7%
B0723.7%

Key Patterns Detected

PatternFunctionFrequency
Fm7b5 -> Bb7b9Setup (Minor Key)2
Bb7b9 -> Ebmaj7Resolution (Major)2
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gm7Resolution (Minor)1
Abm7 -> Db7Setup (Major Key)1
Db7 -> Gbmaj7Resolution (Major)1
Gbmaj7 -> Db7susSetup (Major Key)1
Gbmaj7/Db -> Db7susSetup (Major Key)1
Bbmaj7/F -> F7b9Setup (Major Key)1
Am7b5 -> D7Setup (Minor Key)1
D7 -> Gmaj7Resolution (Major)1
G7 -> Cm7Resolution (Minor)1
Fm7 -> Bb7susSetup (Major Key)1

Harmonic Highlights:

  • Establishes Eb major with conventional ii-V-I progressions (Fm7b5-Bb7b9-Ebmaj7).
  • Features a transient modulation to G minor (iii minor) via Am7b5-D7b9-Gm7.
  • Contains a striking, direct modulation to Gb major (bII) through a ii-V-I progression (Abm7-Db7-Gbmaj7), a common Berlin harmonic characteristic.

Improvisation Focus: Navigating transient modulations and outlining shifting key centers.

Difficulty Rating: 5 (Advanced). The rapid and remote modulations, particularly to Gb major, require a deep understanding of harmonic function and sophisticated melodic navigation.