Chord Distribution Analysis

Chord SymbolCountFrequency
Ebmaj7410.0%
Fm7410.0%
Bb7410.0%
Gm737.5%
Am737.5%
Ab725.0%
Abm725.0%
Db725.0%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)4
Ebmaj7 -> Ab7Setup (Major Key)2
Ab7 -> Ebmaj7Resolution (Major)2
Abm7 -> Db7Setup (Major Key)2
F#m7 -> B7Setup (Major Key)2
Am7 -> D7Setup (Major Key)2
E7 -> Am7Resolution (Minor)2
Cm7 -> F7Setup (Major Key)2
D7 -> Gmaj7Resolution (Major)1
Bm7 -> E7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1
Bb7 -> Ebmaj7Resolution (Major)1

Harmonic Highlights

  • Frequent use of back-door dominant resolutions (Abm7-Db7) and chromatic tritone substitutions creates the lush, “Tadd Dameron” bebop arranging aesthetic.
  • Sequential “side-slipping” ii-V progressions (Gm7-Gb7 or Gm7-F#m7-B7) challenge the performer to navigate rapidly descending tonal centers.
  • The bridge shifts to G Major (the major III), utilizing sequential ii-Vs to provide a bright tonal contrast before cycling back to the home key.
  • Complex turnaround structures (Am7-D7-Bm7-E7) utilize constant tonicization, requiring precise navigation of temporary key centers.

Improvisation Focus Voice leading through chromatic ii-V sequences using Bebop Dominant scales and Melodic Minor substitutions.

Difficulty Rating 4/5: The non-diatonic chord density and rapid modulations require advanced harmonic mapping and sophisticated melodic construction.


📚 Standard Available in:

The Real Book - Volume IV
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