Chord Distribution Analysis

Chord SymbolCountFrequency
Gm7315.0%
Bm7b5210.0%
E7b9210.0%
Am7210.0%
D7210.0%
Fmaj7210.0%
F6210.0%
Am7b515.0%

Key Patterns Detected

PatternFunctionFrequency
Bm7b5 -> E7b9Setup (Minor Key)2
E7b9 -> Am7Resolution (Minor)2
Am7 -> D7Setup (Major Key)2
D7 -> Am7b5Resolution (Minor)1
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gm7Resolution (Minor)1
Bbm7 -> Eb7Setup (Major Key)1
D7 -> Gm7Resolution (Minor)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights:

  • Features an extended cycle of fifths through various ii-V progressions, frequently targeting temporary minor tonalities (e.g., Bm7b5-E7b9 towards Am7).
  • Prominently utilizes altered dominant chords (E7b9, D7b9) to create harmonic tension before resolution.
  • Incorporates a classic backdoor dominant progression (Bbm7-Eb7) to resolve smoothly to the Fmaj7 tonic.
  • Includes multiple iiø7-V7b9 movements (e.g., Am7b5-D7b9 to Gm7) demanding navigation of minor key harmony.

Improvisation Focus: Navigating altered dominant scales and arpeggios.

Difficulty Rating: 4 (Advanced Intermediate) - The frequent use of altered dominants, iiø7-V7b9 chains, and a backdoor progression requires sophisticated harmonic understanding and improvisational agility.