9884 / 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 →
81.94Improvisation Challenge 1 — one upper triad over static lower chord
Lower C major.
RH uses only D-major triad material for eight bars.
Make D identity audible.
Then return fully to C.