Chord Distribution Analysis

Chord SymbolCountFrequency
Ebmaj7816.7%
Bb7816.7%
Fm7612.5%
F748.3%
Cm736.2%
Ab736.2%
Gm736.2%
C736.2%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)4
Bb7 -> Ebmaj7Resolution (Major)4
Ebmaj7 -> Ab7Setup (Major Key)3
Gm7 -> C7Setup (Major Key)3
Bb7 -> Fm7Resolution (Minor)2
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2
Abmaj7 -> Db7Setup (Major Key)2
C7 -> Fm7Resolution (Minor)1

Harmonic Highlights

  • The progression utilizes the II7 (F7) as a secondary dominant (V/V) to create a stronger harmonic pull toward the primary dominant (Bb7).
  • A brief modulation to the subdominant (Abmaj7) occurs via a ii-V sequence (Bbm7–Eb7), shifting the tonal center momentarily to the IV chord.
  • The “backdoor” resolution (Db7 to Ebmaj7) provides a sophisticated chromatic alternative to the standard V-I cadence.
  • Extensive use of ii-V-I cells in the home key of Eb major provides a clear, cyclical structure for melodic development.

Improvisation Focus Targeting “Guide Tones” (3rds and 7ths) is the most effective concept for clearly articulating the shifts between secondary dominants and the tonic.

Difficulty Rating 2/5: The tune is highly accessible for developing players due to its predictable ii-V-I patterns and clear tonal center in Eb major.


📚 Standard Available in:

The Real Book - Volume VI
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