9811 / 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 →
81.21Level 6 — chromatic upper-triad side-slip
Over C pedal:
RH C major.
Then D♭ major.
Then C major.
Pitch movement:
C→D♭→C
E→F→E
G→A♭→G.
Every upper voice moves semitone.
Very coherent.