Chord Distribution Analysis

Chord SymbolCountFrequency
F7817.8%
Bbmaj7715.6%
Ebmaj7613.3%
Ebm6511.1%
Cm748.9%
Fm736.7%
Bb736.7%
Db0724.4%

Key Patterns Detected

PatternFunctionFrequency
F7 -> Bbmaj7Resolution (Major)5
Fm7 -> Bb7Setup (Major Key)3
Bb7 -> Ebmaj7Resolution (Major)3
Cm7 -> F7Setup (Major Key)3

Harmonic Highlights

  • Employs a signature minor plagal cadence (IV to iv) through the Ebmaj7 to Ebm6 movement, utilizing the chromatic descent from G to Gb.
  • Uses chromatic diminished passing chords (Db°7 and B°7) to create smooth, stepwise voice leading between the diatonic iii (Dm7) and ii (Cm7).
  • Incorporates secondary ii-V sequences (Fm7 - Bb7) to tonicize the IV chord, a classic functional device in the Great American Songbook.
  • Utilizes tritone substitutions (Ab7) and altered dominants (A7#5) in turnarounds to provide tension before resolving to the Bb tonic.

Improvisation Focus Bb Major Bebop scale, with specific emphasis on the b6 (Gb) to navigate the IV-iv transition.

Difficulty Rating 2/5. The progression relies on standard diatonic logic and common chromatic passing tones, making it an accessible study in functional harmony and voice leading.


📚 Standard Available in:

The Real Book - Volume V
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