Chord Distribution Analysis

Chord SymbolCountFrequency
F7624.0%
Cm7b5416.0%
Bbmaj7312.0%
C7312.0%
Ebmaj728.0%
Fmaj728.0%
F#0728.0%
Gm728.0%

Key Patterns Detected

PatternFunctionFrequency
Cm7b5 -> F7Setup (Minor Key)4
F7 -> Cm7b5Resolution (Minor)3
F7 -> Bbmaj7Resolution (Major)3
Gm7 -> C7Setup (Major Key)2
C7 -> Fmaj7Resolution (Major)1
Cm7 -> F7Setup (Major Key)1

Harmonic Highlights

  • The progression utilizes a “blue” iiø7–V7 (Cm7b5–F7) borrowed from the parallel minor to resolve into the Bb major tonic, creating immediate modal tension.
  • The bridge shifts to the dominant key (F major), employing sequential ii–V–I progressions (Gm7–C7–Fmaj7).
  • Functional use of the #i°7 (F#°7) serves as a passing chord to the ii (Gm7), facilitating smooth chromatic voice leading during the modulation.

Improvisation Focus

  • C Locrian #2 scale over the Cm7b5 to navigate the non-diatonic b5 while maintaining tonal clarity.

Difficulty Rating

3/5: The integration of minor ii–V progressions within a major key and the rapid modulations in the bridge require precise harmonic navigation beyond basic diatonic patterns.


📚 Standard Available in:

The Real Bebop Book
🛒 Buy on Amazon
As an Amazon Associate I earn from qualifying purchases. Check the Hal Leonard Jazz Song Finder to make sure that the standard is indeed in the book before buying it.