Chord Distribution Analysis

Chord SymbolCountFrequency
G6622.2%
A7414.8%
D7414.8%
Am7311.1%
Dm7311.1%
G7311.1%
Cmaj727.4%
D7#513.7%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)3
Dm7 -> G7Setup (Major Key)3
G7 -> Dm7Resolution (Minor)2
G7 -> Cmaj7Resolution (Major)1
D7 -> Am7Resolution (Minor)1

Harmonic Highlights

  • The progression opens with a II7 (A7) transitioning into a ii-V-I (Am7-D7-G6), utilizing the secondary dominant to create forward momentum toward the tonic.
  • The bridge shifts to the subdominant via a ii-V of IV (Dm7-G7 resolving to Cmaj7), a standard modulation in AABA swing structures.
  • Integration of the Cm6 (ivm6) chord creates a classic minor plagal cadence, providing a bittersweet chromatic descent back to the G major tonic.
  • Frequent use of D7#5 turnarounds provides an altered dominant tension that reinforces the G6 tonic stability.

Improvisation Focus Targeting the 3rd of each chord to navigate the II7-ii7-V7 chromatic voice leading (C# to C to B).

Difficulty Rating 2/5: The piece uses predictable cycles of fourths and standard diatonic modulations, making it an ideal study for intermediate jazz fluency.


๐Ÿ“š Standard Available in:

The Real Book - Volume III
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