Chord Distribution Analysis

Chord SymbolCountFrequency
Em737.1%
B7#524.8%
F#724.8%
Bm724.8%
E724.8%
Bb7#1124.8%
Eb924.8%
Abm924.8%

Key Patterns Detected

PatternFunctionFrequency
B7#5 -> Em7Resolution (Minor)2
F#7 -> Bm7Resolution (Minor)2
Bm7 -> E7Setup (Major Key)2
E7#9 -> Am7Resolution (Minor)1
Em7 -> A7Setup (Major Key)1
F#m7b5 -> B7#5Setup (Minor Key)1
Eb7#5#9 -> Abm9Resolution (Minor)1
Dm7b5 -> G7Setup (Minor Key)1
G7 -> Cm7Resolution (Minor)1
D7#5 -> Gm7Resolution (Minor)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights

  • Uses a Neapolitan-style opening (Fmaj7 to E7#9), creating immediate Phrygian-dominant tension that resolves toward the subdominant Am7.
  • Employs frequent minor ii-V-i sequences (F#m7b5 - B7#5 - Em7) that shift abruptly into the key of B minor via secondary dominants like F#7.
  • Integrates Lydian Dominant textures (D9#11) and altered dominant tensions (B7#5) to bridge non-diatonic chord movements.
  • Features “constant structure” patterns where ii-V cycles repeat across different tonal centers, requiring agile harmonic navigation.

Improvisation Focus Melodic Minor (specifically E and B Melodic Minor) to address altered dominants and m7b5 chords.

Difficulty Rating 4/5 - The piece demands rapid switching between minor key centers and mastery over altered dominant extensions in a non-functional context.