The Madame Psychosis show (p. 182)
She is hidden from all view by a jointed trip-tych screen of cream chiffon that glows red and green in the lights of the phone bank and the cueing panel’s dials and frames her silhouette. Her silhouette is cleanly limned against the screen, sitting cross-legged in its insectile microphonic headset, smoking.
Context
The radio form of the veil: Madame Psychosis broadcasts from behind her own brought-in triptych screen, hidden even from the engineer who mixes her. Carlisle's point (recorded at 058) makes the screen a redundancy — under it she's veiled anyway, so the studio apparatus is U.H.I.D. practice performed twice over. (The text has "trip-tych" here vs. "triptych" a page later — both carried as written.)