9791 / 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 →
81.1Begin with something familiar
LH:
C
RH:
D major triad
D-F♯-A.
We have already used this as an upper structure over C.
Relative to C:
D = 9
F♯ = ♯11
A = 13.
So we hear:
Cmaj13♯11-type color.
Nothing shocking.