Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7411.4%
Bb7411.4%
Ebmaj738.6%
F738.6%
Gm738.6%
C738.6%
Cm725.7%
Bbm725.7%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)4
Gm7 -> C7Setup (Major Key)3
Cm7 -> F7Setup (Major Key)2
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2
Bb7 -> Ebmaj7Resolution (Major)2
Dm7b5 -> G7b9Setup (Minor Key)1
G7b9 -> Cm7Resolution (Minor)1
F7 -> Bbm7Resolution (Minor)1
Am7b5 -> D7Setup (Minor Key)1
D7 -> Gm7Resolution (Minor)1
Abmaj7 -> Db7Setup (Major Key)1
C7 -> Fm7Resolution (Minor)1
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gm7Resolution (Minor)1

Harmonic Highlights

  • Features a minor ii-V (Dm7b5 - G7b9) targeting the relative minor (Cm7), effectively creating a temporary tonicization of the vi chord within the first four bars.
  • Employs a series of interlocking ii-V progressions (Bbm7-Eb7 to Abmaj7 and Am7b5-D7 to Gm7) that move through the subdominant and mediant areas.
  • Utilizes a “backdoor” dominant feel or secondary dominant chains (F7 to Bb7) to resolve back to the tonic Ebmaj7, maintaining constant forward motion.

Improvisation Focus Navigating frequent major and minor ii-V-I sequences using smooth chord-tone voice leading.

Difficulty Rating 3/5; the AABA form is standard, but the constant shifts between temporary key centers and minor ii-Vs require advanced harmonic awareness.