Chord Distribution Analysis

Chord SymbolCountFrequency
Dm61733.3%
Gm61223.5%
A7b9611.8%
D7b959.8%
Em7b535.9%
Am7b523.9%
Bm7b523.9%
E7b923.9%

Key Patterns Detected

PatternFunctionFrequency
A7b9 -> Dm6Resolution (Minor)6
Em7b5 -> A7b9Setup (Minor Key)3
D7b9 -> Gm6Resolution (Minor)3
Gm6 -> D7b9Setup (Major Key)2
Am7b5 -> D7b9Setup (Minor Key)2
Bm7b5 -> E7b9Setup (Minor Key)2

Harmonic Highlights

  • Frequent minor ii-V-i progressions (Em7b5 - A7b9 - Dm6) establish a sophisticated minor tonality, emphasizing the dark colors of the b9 and b13.
  • The D7b9 acts as a secondary dominant (V/IV), creating a strong chromatic resolution to the subdominant Gm6.
  • The sequence Bm7b5 - E7b9 - A7b9 functions as a “ii-V of V,” building significant harmonic tension that prepares the return to the tonic Dm6.

Improvisation Focus D Harmonic Minor (D, E, F, G, A, Bb, C#) is the most critical scale for navigating the V7b9 resolutions and the distinctive minor-key melody.

Difficulty Rating 2/5: The harmonic movements are largely standard minor ii-V-i patterns and the moderate tempo allows ample time for chord-tone targeting.