What is the tone of the shepherd?
The Shepard Tone is an audio illusion that creates the feeling of consistent, never-ending rising/falling.
How the Shepard's tone works?
The Shepard Tone creates the illusion of continuously swelling sound, which can build tension or suspense. ... The term refers to an auditory illusion of a sound that continually ascends (or descends) in pitch. The tone is a sound that comprises multiple sine waves separated by an octave and layered on top of each other.