9825 / 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 →
81.35Level 13 — lower chord moves, upper stays
Now reverse.
RH:
D major fixed.
LH triads:
C
B♭
A
G.
The upper structure acts like a harmonic pedal.
Different bass/lower chords reinterpret it.