Chord Distribution Analysis

Chord SymbolCountFrequency
Ebm111021.3%
Fm7b5612.8%
Bb7b936.4%
Gb1336.4%
Ab1336.4%
Bb7#536.4%
Em1124.3%
Fm7b5/B24.3%

Key Patterns Detected

PatternFunctionFrequency
Fm7b5 -> Bb7b9Setup (Minor Key)3
C#m7 -> F#7Setup (Major Key)2
F#7 -> Bmaj7Resolution (Major)2
Bb7#5 -> Ebm11Resolution (Minor)2
Bbm7b5 -> Eb7b9Setup (Minor Key)1
Eb7b9 -> Abm7Resolution (Minor)1
Bb7b9 -> Ebm7Resolution (Minor)1
Am7 -> D7b9Setup (Major Key)1
D7b9 -> Gmaj7Resolution (Major)1

Harmonic Highlights:

  • A characteristic chromatic approach to the tonic minor is established from Em11 to Ebm11.
  • A clear ii-V-I progression (C#m7-F#7-Bmaj7) leads to an unexpected, albeit brief, modulation to B major.
  • The progression features a subsequent iiø7-V7-i into Abm7 (Bbm7b5-Eb7b9-Abm7), the subdominant minor of Eb, alongside frequent altered and extended dominant chords.

Improvisation Focus: Navigating temporary modulations with appropriate modal and altered dominant scales.

Difficulty Rating: 4 (Intermediate-Advanced). The frequent modulations to distant keys and the extensive use of altered and extended dominant chords require sophisticated harmonic understanding.