"Music is the cup that holds the wine of silence. Sound is that cup, but empty. Noise is that cup, but broken.” Robert Fripp
Walking and talking
In 1931, Alan Blumlein developed what he called "binaural sound", what we call now stereophonic sound (stereo). Some test's recording to listen to are available at the British Library ' website.
These experimental tests with collaborators as a "sound poetry" !