Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7512.5%
D7410.0%
G7410.0%
C637.5%
Am737.5%
Em737.5%
G7#525.0%
Gm725.0%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)3
Gm7 -> C7Setup (Major Key)2
C7 -> Fmaj7Resolution (Major)2
Fmaj7 -> Bb7#11Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
Em7 -> B7susSetup (Major Key)1
B7sus -> Em7Resolution (Minor)1
Em7 -> B7b9Setup (Major Key)1
B7b9 -> Em7b5Resolution (Minor)1
Em7b5 -> A7b9Setup (Minor Key)1
A7b9 -> Dm7Resolution (Minor)1
Dm7 -> A7susSetup (Major Key)1
A7sus -> Dm7Resolution (Minor)1
Dm7/G -> G7Setup (Major Key)1

  • Extensive application of tritone substitutions, notably Bb7#11 for E7 and Eb7#11 for A7, often incorporating Lydian Dominant #11 sonorities.
  • Frequent tonicization and elaboration of minor chords (e.g., Em7, Dm7) through both standard ii-V progressions (Em7b5, A7b9) and V7 altered cadences (B7b9).
  • The sophisticated Em7, F7#11, Em7 movement showcases a reharmonization of B7 (V of Em) with its tritone substitute F7#11, maintaining the minor tonic while introducing chromatic tension.

Improvisation Focus: Lydian Dominant Scale.

Difficulty Rating: 5 (Advanced). Frequent and sophisticated use of altered dominants, tritone substitutions, and non-diatonic resolutions requires a deep understanding of advanced harmony.