Chord Distribution Analysis

Chord SymbolCountFrequency
Ebmaj7613.3%
Bbm736.7%
Ab736.7%
Db736.7%
F#736.7%
B736.7%
Fm736.7%
Eb724.4%

Key Patterns Detected

PatternFunctionFrequency
Bbm7 -> Eb7Setup (Major Key)2
Fm7 -> Bb7#5Setup (Major Key)2
Bb7#5 -> Ebmaj7Resolution (Major)2
Bbm7 -> Eb7#11Setup (Major Key)1
Eb7#11 -> Abmaj7Resolution (Major)1
Gm7b5 -> C7b9/GSetup (Minor Key)1
Cm7 -> F7Setup (Major Key)1
F7 -> Bbm7Resolution (Minor)1

Harmonic Highlights:

  • Features an extended cycle of dominant 7th chords (A7#11, Ab7, Db7, F#7, B7, E7), functioning as tritone substitutions, creating rapid, non-diatonic harmonic movement.
  • Utilizes backdoor dominant progressions, notably Bbm7, Eb7#11 resolving to Abmaj7 (IV chord), adding a characteristic Monk flavor.
  • Frequent deployment of altered dominant chords (A7#11, Eb7#11, Bb7#5, C7b9) introduces significant tension and rich chromaticism.

Improvisation Focus: Navigating altered scales and tritone substitution concepts.

Difficulty Rating: 5/5. Its dense harmonic rhythm, extended non-diatonic progressions, and frequent altered dominants demand advanced theoretical and improvisational mastery.