Chord Distribution Analysis

Chord SymbolCountFrequency
D71136.7%
Gm7723.3%
Am7b5413.3%
Eb7413.3%
F726.7%
Bbmaj726.7%

Key Patterns Detected

PatternFunctionFrequency
Am7b5 -> D7Setup (Minor Key)4
D7 -> Gm7Resolution (Minor)4
D7 -> Am7b5Resolution (Minor)3
F7 -> Bbmaj7Resolution (Major)1
Gm7 -> D7Setup (Major Key)1

Harmonic Highlights

  • The structure relies on a functional minor ii-V-i (Am7b5 - D7 - Gm) engine, emphasizing the G minor tonality with strong dominant-to-tonic resolutions.
  • The bridge shifts to the relative major (Bb major) via a standard ii-V (F7 to Bbmaj7), providing a bright contrast to the brooding A sections.
  • Includes chromatic neighbor-tone motion via the Eb7 chord, which functions as a secondary dominant or tritone substitute leading back to the primary D7 dominant.

Improvisation Focus G Harmonic Minor (and the D Phrygian Dominant mode) to effectively highlight the leading tone (F#) over the D7(b9) chords.

Difficulty Rating 2/5: The progression uses standard minor-key vocabulary and clear modulations to the relative major, making it accessible for intermediate improvisers.


๐Ÿ“š Standard Available in:

The Real Book - Volume IV
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