4’33”

In my work, silence gives birth to all sound. We use silence judiciously in our performances as a transition, as a pregnant pause that draws listeners in, allowing integration, transformation and deep listening.  

Silence I discover is something you can actually hear. Haruki Murakami
It is defined as the absence of intentional sound. However researchers at John Hopkins have discovered that even during periods of 'silence' during a musical composition, the auditory cortex was still stimulated.  (watch here) Simply imagine a pause in a thriller movie soundtrack - you are held in suspended animated anticipation. 

Immersing yourself in a sensory deprivation chamber you will quickly hear two distinct sounds - the high pitched noise of your sensory system and the deep note of your circulatory system.  Thus we can never experience complete and absolute silence.

Yet, Silence is essential. We all need silence, just as much as we need air, just as much as plants need light.  Thich Nhat Hanh 

The only other style of music that attempts to go to the deeper place of  silence is the music of the New Age. John Michael Talbot

Regarded as 'noise music', the ambient random noises of the audience make each performance unique.  Cage was asked to explain the composition and said that unimpededness as "seeing that in all of space each thing and each human being is at the center", and interpenetration as  each one of the (things and humans at the center) is moving out in all directions penetrating and being penetrated by every other one no matter what the time or what the space", concluding that "each and every thing in all of time and space is related to each and every other thing in all of time and space".

We experience this in every gong bath. And remember in the Universal Peace Greeting 
We are one, let us work together.