Chord Distribution Analysis

Chord SymbolCountFrequency
Am7517.9%
D7517.9%
G6310.7%
Bm7b5310.7%
E7b9310.7%
G#0713.6%
Dm713.6%
G713.6%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)5
Bm7b5 -> E7b9Setup (Minor Key)3
D7 -> Am7Resolution (Minor)2
Dm7 -> G7Setup (Major Key)1
E7b9 -> AmResolution (Minor)1
Am/G -> D7/F#Setup (Major Key)1
E7b9 -> Am7Resolution (Minor)1

Harmonic Highlights

  • The progression utilizes repetitive ii-V cycles (Am7-D7) that imply a G Major tonality, creating a tension-release relationship with the A minor home key.
  • A chromatic “line clichĂ©” appears in the bridge (Am–Am/G#–Am/G–D7/F#), providing sophisticated linear voice leading through descending inner voices.
  • The use of G#o7 acts as a connecting passing chord, facilitating a smooth transition from the I chord (G6) back to the ii chord (Am7).
  • The minor ii-V-i turnaround (Bm7b5–E7b9–Am) reinforces the A minor center using a dominant chord with altered extensions for maximum harmonic pull.

Improvisation Focus Targeting guide tones (3rds and 7ths) to navigate the chromatic descending bass line and the shifts between Dorian and Harmonic Minor textures.

Difficulty Rating 2/5: While the chromatic bridge requires precision, the harmonic structure mostly consists of standard, repetitive ii-V patterns accessible to intermediate players.


📚 Standard Available in:

The Real Book - Volume II
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