Chord Distribution Analysis

Chord SymbolCountFrequency
Ebmaj7220.0%
Gm7220.0%
C7220.0%
Fm7110.0%
Bb7110.0%
Abm7110.0%
Db7110.0%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)2
C7 -> Fm7Resolution (Minor)1
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebmaj7Resolution (Major)1
Abm7 -> Db7Setup (Major Key)1

Harmonic Highlights

  • The A section utilizes a classic I–iii–VI7–ii–V progression, where the C7 functions as a secondary dominant (V/ii) to create forward motion toward the Fm7.
  • The sequence Abm7–Db7 serves as a “backdoor” ii–V (bVII7), providing a sophisticated chromatic alternative to a standard V7 turnaround back to the Eb tonic.
  • The structure relies on functional diatonic cycling and the cycle of fourths, characteristic of mid-century hard bop and “Rhythm Changes” variations.

Improvisation Focus The Eb Major Bebop scale (Eb–F–G–Ab–Bb–B–C–D) to effectively navigate the secondary dominants while maintaining a melodic, swinging flow.

Difficulty Rating 3/5. While the harmonic vocabulary is standard, the typical up-tempo delivery requires fluid command of bebop language and precise guide-tone targeting.