Chord Distribution Analysis

Chord SymbolCountFrequency
F61326.5%
Gm7816.3%
C7b5/Gb612.2%
Bbmaj7510.2%
Eb948.2%
F724.1%
C724.1%
Em712.0%

Key Patterns Detected

PatternFunctionFrequency
F7 -> Bbmaj7Resolution (Major)2
Gm7 -> C7Setup (Major Key)2
Em7 -> A7Setup (Major Key)1
Am7 -> D7Setup (Major Key)1
Dm7 -> G7Setup (Major Key)1
Gm7 -> C7b9Setup (Major Key)1

Harmonic Highlights:

  • The opening C7b5/Gb provides an immediate altered dominant sound, resolving to the F6 tonic with a characteristic V7b5-I movement.
  • Frequent use of secondary dominants like F7 (V7/IV) leading to Bbmaj7, and an effective Eb9 (bVII9) acting as a backdoor dominant.
  • Extended II-V cycles and secondary dominant chains such as Em7-A7 and Am7-D7, indicating clear temporary modulations and expanded harmonic movement.

Improvisation Focus: Altered Scale (Super Locrian).

Difficulty Rating: 4 (Advanced Intermediate). The prevalence of altered dominants, backdoor dominants, and cascading II-V progressions demands sophisticated harmonic navigation and specific scale applications.