Chord Distribution Analysis

Chord SymbolCountFrequency
Gm7720.6%
B7alt411.8%
Em7411.8%
Cm7411.8%
C738.8%
Fmaj738.8%
Ebmaj725.9%
Dm725.9%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)3
B7alt -> Em7Resolution (Minor)2
C7 -> Fmaj7Resolution (Major)2
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebmaj7Resolution (Major)1
Dm7 -> G7#9Setup (Major Key)1

Harmonic Highlights

  • The initial B7alt to Em7 creates a non-diatonic V-i movement, establishing a dark harmonic palette that temporarily displaces the G minor tonic.
  • Successive II-V-I modulations (Fm7-Bb7-Ebmaj7) demonstrate Swallow’s signature use of rapid “side-slipping” through adjacent tonal centers.
  • The chromatic sequence of Em7b5 to Ebm6 to Dm7 utilizes smooth voice leading to transition from the subdominant region back toward the dominant turnaround.

Improvisation Focus The Altered Scale (Super Locrian) for navigating non-functional dominant chords and resolving melodic minor tensions.

Difficulty Rating 4/5. The tune’s non-linear modulations and sophisticated chord extensions require advanced proficiency in melodic minor applications and rapid mental transposition.