Chord Distribution Analysis

Chord SymbolCountFrequency
F7720.0%
G7617.1%
Cm7514.3%
Bbmaj725.7%
Dm725.7%
Fm725.7%
Bb725.7%
Eb725.7%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)5
G7 -> Cm7Resolution (Minor)4
Dm7 -> G7Setup (Major Key)2
Fm7 -> Bb7Setup (Major Key)2
F7 -> Bbmaj7Resolution (Major)1

Harmonic Highlights

  • The progression functions as a “Rhythm Changes” variant, utilizing a cycle of ii-V-I movements that pivot between the tonic and subdominant regions.
  • The bridge features an extended “cycle of dominants” (D7-G7-C7-F7), a signature bebop device that builds harmonic tension through successive secondary dominants.
  • Rapid ii-V cells (Dm7-G7 and Cm7-F7) facilitate frequent tonal shifts, requiring the soloist to resolve chromatic leading tones within a very short duration.

Improvisation Focus The Bebop Scale (specifically Dominant and Dorian) is the primary tool for connecting chord tones with passing tones at the fast tempos required for this tune.

Difficulty Rating 4 (Advanced): The high-speed tempo combined with the relentless cycle of dominant chords demands exceptional rhythmic precision and immediate harmonic recall.


📚 Standard Available in:

The Real Book - Volume II
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