Chord Distribution Analysis

Chord SymbolCountFrequency
Am7819.0%
E7b9716.7%
Bm7614.3%
D7511.9%
Gmaj7511.9%
C7511.9%
Bm7b524.8%
Cm612.4%

Key Patterns Detected

PatternFunctionFrequency
E7b9 -> Am7Resolution (Minor)6
Am7 -> D7Setup (Major Key)5
Gmaj7 -> C7Setup (Major Key)5
Bm7 -> E7b9Setup (Major Key)5
D7 -> Gmaj7Resolution (Major)4
Bm7b5 -> E7b9Setup (Minor Key)2
Cm6 -> F7Setup (Major Key)1

Harmonic Highlights

  • Frequent use of the ii-V of ii (Bm7b5 - E7b9) provides harmonic depth by temporarily tonicizing the Am7 chord.
  • Strong ii-V-I resolutions in G major (Am7 - D7 - Gmaj7) anchor the primary tonal center.
  • The inclusion of C7 (the IV7) acts as a bluesy subdominant or a bridge to the iii-VI-ii-V turnaround.
  • Cycle of fourths movement facilitates smooth voice leading throughout the A sections.

Improvisation Focus G Major/Bebop Major scale, with targeted use of the A Harmonic Minor scale over the E7b9 chord to highlight the flat 9.

Difficulty Rating 2/5. The changes are largely diatonic and follow a predictable A-B-A-C form, making it accessible for developing improvisers.