Chord Distribution Analysis

Chord SymbolCountFrequency
Bb6414.3%
C7310.7%
Ebmaj727.1%
Ab727.1%
Bmaj727.1%
Amaj727.1%
Gmaj727.1%
Fm713.6%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebmaj7Resolution (Major)1
Ebmaj7 -> Ab7Setup (Major Key)1
C#m7 -> F#7Setup (Major Key)1
F#7 -> Bmaj7Resolution (Major)1
Bm7 -> E7Setup (Major Key)1
E7 -> Amaj7Resolution (Major)1
Am7 -> D7Setup (Major Key)1
D7 -> Gmaj7Resolution (Major)1
Gm7 -> C7Setup (Major Key)1
Cm7 -> F7#5Setup (Major Key)1

  • Features rapid, non-diatonic modulations via successive ii-V-I progressions.
  • Exhibits key centers shifting frequently, such as Fm7-Bb7-Ebmaj7 followed by C#m7-F#7-Bmaj7 and Bm7-E7-Amaj7.
  • Incorporates distant key relationships, moving from Eb major to B major (a tritone interval) within a few bars.
  • Utilizes dominant 7th chords like Ab7, functioning outside diatonic expectations, often hinting at tritone substitutions.

Improvisation Focus: Accurate outlining of chord tones and arpeggios for each rapidly changing harmony.

Difficulty Rating: 5 (Advanced). The extreme harmonic rhythm and frequent, distant key changes demand high technical proficiency and deep harmonic understanding.