Chord Distribution Analysis

Chord SymbolCountFrequency
Cm7719.4%
F7719.4%
Bb638.3%
Gm738.3%
Bbmaj738.3%
Eb725.6%
Dm725.6%
G725.6%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)7
F7 -> Bbmaj7Resolution (Major)3
Bbmaj7 -> Eb7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
G7 -> Cm7Resolution (Minor)2
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gm7Resolution (Minor)1
Em7b5 -> A7Setup (Minor Key)1
A7 -> Dmaj7Resolution (Major)1

Harmonic Highlights

  • Utilizes a standard AABA form driven by I-vi-ii-V and iii-VI-ii-V turnarounds in the tonic Bb major.
  • Incorporates a secondary ii-V-i (Am7b5 - D7b9 - Gm7) targeting the relative minor, necessitating a shift to G harmonic minor.
  • Employs modal interchange via the Eb7 (IV7), functioning as a subdominant variation that adds bluesy tension.
  • Features a bridge that sequences through ii-V movements, notably using Em7b5 - A7 to pivot back towards the primary diatonic centers.

Improvisation Focus Mastering Bb major guide-tone connections while clearly outlining the F# and Eb alterations during the minor ii-V-i sections.

Difficulty Rating 2/5: The harmonic rhythm is predictable and the changes stay mostly within the primary key center, making it an ideal study for intermediate players.


๐Ÿ“š Standard Available in:

The Real Book - Volume III
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