Chord Distribution Analysis

Chord SymbolCountFrequency
Cmaj71215.8%
Dm7911.8%
Em7810.5%
G767.9%
Bbmaj745.3%
Am745.3%
A745.3%
D745.3%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)5
Em7 -> A7Setup (Major Key)4
Em7 -> A7b13Setup (Major Key)2
Am7 -> D7Setup (Major Key)2
A7 -> Dm7Resolution (Minor)2
F#m7 -> B7Setup (Major Key)1
B7 -> Emaj7Resolution (Major)1
D7 -> Gmaj7Resolution (Major)1
G7 -> Cmaj7Resolution (Major)1
Cmaj7 -> G7Setup (Major Key)1
Ebm7 -> Ab7Setup (Major Key)1
Bm7b5 -> E7Setup (Minor Key)1
E7 -> Am7Resolution (Minor)1

Harmonic Highlights

  • The I - bVIImaj7 (Cmaj7 - Bbmaj7) opening establishes a non-diatonic, sophisticated modal texture that avoids standard V-I resolutions in the initial phrase.
  • A chromatic descending sequence (F#m7b5 to Fm6 to Em7) acts as a bridge to the iii chord, utilizing the minor iv (Fm6) for a classic bittersweet subdominant minor resolution.
  • The progression frequently employs Gm7 - C7 as a secondary ii-V to tonicize the IV chord, followed by quick turnarounds involving A7b13 to cycle back to the ii-V-I in C major.

Improvisation Focus Navigating chromatic voice-leading and secondary dominants using the C Major Bebop scale and Lydian Dominant applications.

Difficulty Rating 4/5. The dense harmonic rhythm and frequent non-diatonic substitutions require advanced knowledge of tension resolution and precise melodic phrasing.


๐Ÿ“š Standard Available in:

The Real Book - Volume III
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