Chord Distribution Analysis

Chord SymbolCountFrequency
Em71626.2%
D6914.8%
Am746.6%
Gm746.6%
C7#1146.6%
Bb746.6%
B7#5#934.9%
Eb7#1123.3%

Key Patterns Detected

PatternFunctionFrequency
B7#5#9 -> Em7Resolution (Minor)3
Gm7 -> C7#11Setup (Major Key)3
Fm7 -> Bb7Setup (Major Key)2
Bbmaj7 -> Eb7#11Setup (Major Key)1
Bb7 -> Fm7Resolution (Minor)1
Em7 -> A7#5#9Setup (Major Key)1

Harmonic Highlights

  • The movement from B7#5#9 to Em7 functions as a V7/vi secondary dominant resolution, providing a sophisticated chromatic pull toward the minor submediant.
  • Modal interchange is introduced via the Gm7 and Bbmaj7 sequence, momentarily shifting the tonal color from G major to the parallel G natural minor.
  • The Eb7#11 serves as a bVI7 dominant substitute, creating a smooth chromatic descent toward the tonic or dominant areas.
  • Standard ii-V-I progressions are embellished with suspended chords (A7sus, G7sus) and altered extensions (A13b9) to facilitate fluid voice leading.

Improvisation Focus The Altered Scale (Super Locrian) played over secondary dominants to highlight #5 and b9 tensions.

Difficulty Rating 3/5: The slow ballad tempo provides ample time for thought, but the performer must accurately navigate non-diatonic substitutions and specific altered dominant colors.


๐Ÿ“š Standard Available in:

The Real Book - Volume IV
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