9858 / 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 →
81.68Upper structure vs polychord returns again
Same notes.
If RH A♭m is simply one block inside G7alt:
upper structure.
If it behaves like an independent repeating harmonic object:
polychordal hearing.
Behavior matters.