PURPOSE: To illustrate the audio analog to the "spiral staircase" effect.

DESCRIPTION: This CD contains a fine example of downward glissando Shepard's tones. Track 5, Fall, from "Computer Suite from Little Boy," uses downward glissando Shepard's tones to represent the dropping of the atomic bomb.

SUGGESTIONS: See other examples of Shepard's tones in our library: (1) Audiotape "Voice of the Computer" contains Shepard's tones music compositions, and (2) Videotape "A Pair of Paradoxes" simultaneously presenting stepwise Shepard's tones while a ball jumps around the spiral staircase.

REFERENCES: (PIRA unknown.)

EQUIPMENT: CD with player.

SETUP TIME: None.