Pauline Oliveros is one of the founding leaders of sound art and personally my biggest role model. Her work focuses a lot on improvisation but in a practice of meditation. She most dominantly played the accordion and studied synthesizers and other sound technology very deeply. Becuause of the time period, there really weren't a lot of people around to teach others how to use synthesizers. So, Pauline spent hours just stitting with the machines and tinkering with them until she understood (I find this to be very inspiring). She was a huge tech freak! She investigated technology that could capture the sound of the moon. I don't think she used this artistically, but the experience demonstrates her obsession. Pauline also worked a lot with people. Once she started to figure out her interest in meditation, she began to collect people into groups and guide them through meditations involving sound. She has a book published called "Sonic Meditations" full of prompts she used to guide these sessions. I highly reccomend checking it out, there's some interesting ideas in it. Sometimes she would have the group make sound while other times she prompted people to just listen deeply and nothing else. She has one prompt in her novel that I frequently return to: "Walk so quietly that your feet become ears" or somehting along those lines. It's absurd, but also provocative.