Chord Distribution Analysis

Chord SymbolCountFrequency
C7513.9%
F7513.9%
G738.3%
Bb638.3%
Bbmaj725.6%
Am7b525.6%
D7b925.6%
Bb725.6%

Key Patterns Detected

PatternFunctionFrequency
Am7b5 -> D7b9Setup (Minor Key)2
Cm7 -> F7Setup (Major Key)2
Bb7 -> Ebmaj7Resolution (Major)1
D7b9 -> Gm7Resolution (Minor)1
Gm/F -> C7Setup (Major Key)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights

  • Secondary Dominant Chain: Utilizes a VI7-II7-V7-I7 sequence (G7-C7-F7-Bb7) to drive forward momentum via the cycle of fifths.
  • Tonicization of Relative Minor: Employs a minor ii-V (Am7b5-D7b9) to target Gm, providing a temporary shift to the relative minor key.
  • Modal Interchange: Features an Abmaj7 (bVIImaj7), a subdominant minor substitute that adds harmonic color outside the diatonic Bb major scale.
  • Chromatic Line Cliché: Incorporates a descending bass line over the vi chord (Gm-Gm/Gb-Gm/F) to create smooth voice leading during the bridge section.

Improvisation Focus Navigating secondary dominants using Mixolydian and Altered scales.

Difficulty Rating 3/5: The tune requires technical agility to manage rapid dominant cycles and alternating major/minor ii-V patterns at typical up-tempos.


📚 Standard Available in:

The Real Book - Volume II
🛒 Buy on Amazon
As an Amazon Associate I earn from qualifying purchases. Check the Hal Leonard Jazz Song Finder to make sure that the standard is indeed in the book before buying it.