9800 / 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 →
81.10Too much agreement collapses the two layers
If two triads share many pitches and functions:
the ear combines them into one ordinary chord.
For true polychordal effect, you often need enough difference that both layers retain identity.