Chord Distribution Analysis

Chord SymbolCountFrequency
Ebmaj71021.3%
Bb7919.1%
Fm7817.0%
Cm7510.6%
C736.4%
Abmaj724.3%
Gm712.1%
Abm612.1%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)7
Bb7 -> Ebmaj7Resolution (Major)6
C7 -> Fm7Resolution (Minor)2
Gm7 -> C7Setup (Major Key)1
Abm6 -> Db7Setup (Major Key)1
Dm7 -> G7Setup (Major Key)1
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1
Gm7b5 -> C7Setup (Minor Key)1

Harmonic Highlights

  • Utilizes a classic I-vi-ii-V turnaround in Eb Major for the primary theme, providing a stable diatonic foundation.
  • Features a sophisticated subdominant minor move (Abm6 to Db7) which acts as a backdoor cadence (bVII7) returning to Ebmaj7.
  • Employs secondary dominants like C7 (V/ii) and G7 (V/vi) to create forward motion and temporary tonicization of non-tonic chords.
  • The Gm7-C7-Fm7-Bb7 sequence creates a functional iii-VI-ii-V circle of fifths progression common in the Great American Songbook.

Improvisation Focus Eb Major Bebop scale, prioritizing voice-leading through the chromatic alterations of the secondary dominants and the subdominant minor.

Difficulty Rating 2/5: The progression relies on standard jazz vocabulary and predictable cadences, making it an ideal study for intermediate players to practice navigating secondary dominants.