9794 / 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 →
81.4The difference is partly orchestration
Play:
LH: C-E-G.
RH immediately above: D-F♯-A.
Dense.
You may hear one six-note sonority.
Now separate registers:
LH: low C-G-E.
RH: high D-F♯-A.
Play each layer distinctly.
The two chord identities become easier to hear.