Chord Distribution Analysis

Chord SymbolCountFrequency
Bbm7922.5%
F#m7820.0%
B7820.0%
B7#11410.0%
Fm725.0%
Eb725.0%
Abm725.0%
Db725.0%

Key Patterns Detected

PatternFunctionFrequency
F#m7 -> B7Setup (Major Key)8
B7 -> F#m7Resolution (Minor)5
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abm7Resolution (Minor)2
Abm7 -> Db7Setup (Major Key)2
B7#11 -> F#m7Resolution (Minor)1
E7 -> Amaj7Resolution (Major)1
C7 -> Fm7Resolution (Minor)1

Harmonic Highlights

  • Sequential ii-V motion: The progression utilizes descending ii-V cells (Bbm7-Eb7, Abm7-Db7, F#m7-B7), cycling through temporary tonal centers a whole step apart.
  • Tonal anchoring: Despite the rapid movement, the frequent return to F#m7-B7 reinforces B major as the primary destination through a repetitive ii-V-I framework.
  • Harmonic extension: The B7#11 chord introduces Lydian Dominant color, functioning as a pivot point that bridges the complex modulations back to the home key.

Improvisation Focus Digital patterns (1-2-3-5) and voice-led guide tones to navigate rapid ii-V transitions.

Difficulty Rating 4. The high-speed harmonic rhythm and constant modulation demand advanced mental agility and precise melodic cell transposition.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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