9804 / 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 →
81.14One note can decide whether layers fight
The E-F semitone creates much of the tension.
Remove E:
suspended.
Keep E:
major/dominant against upper-IV-like color.
This is controlled dissonance.