BookatlasPiano Rabbit Hole: Improvisation Theory & Practice
9806 / 18210 · Workshop 81 — Polychords and Bitonal Hearing: Two Harmonic Worlds at Once, Upper Structure vs. True Polychord, Controlled Clashes, and Making “Wrong” Chords Sound Intentional← prev⊞ allnext →

81.16This is not “wrong” if deliberate

The clash:

E♭ + E

can represent:

  • blues major/minor duality
  • bitonal color
  • chromatic upper layer
  • dramatic tension

But duration and voicing matter enormously.