Pauline Oliveros is a pioneer in the field of avant garde music and a philosophy of music she calls “deep listening.” Her TED talk (below) explains the theory and practice of deep listening.
From the website Resident Advisor: Pauline Oliveros is one of modern music’s most important figures, precisely because her work transcends music itself. While many people have heard of her contemporaries like Steve Reich and Philip Glass, Oliveros’ five decades of work is so wide-reaching that popular culture has barely kept up. She was a founding member of the San Francisco Tape Music Center in the ’60s, and devised a musical concept called Deep Listening, which stemmed from a trip into a giant underground cistern with a 45-second reverb. Those echoes led to an exploration of the difference between hearing and listening and a pursuit of a heightened state of awareness in sound. Oliveros’ ideas have inspired not only musicians and music fans but scientists, philosophers and everyday people to think about the link that listening builds between us and our surroundings. So while recordings like Crone Music and Deep Listening are heralded by experimental music and drone heads alike, Oliveros is equally acclaimed for devising instruments for disabled people and teaching students with no formal music training to improvise together.