Born in Kitchener, Canada in 1965, Marc Sabat is a composer and violinist based in Berlin. With Wolfgang von Schweinitz, he established the PLAINSOUND website in 2000 as a curated, interdisciplinary virtual artist edition. This site features open source, non-commercial sharing of experimental, perception-driven artistic work and research, with a major, but not exclusive focus on the practice of microtonally extended just intonation. Along with Thomas Nicholson, Catherine Lamb, and Rebecca Lane, Sabat co-founded Harmonic Space Orchestra in 2019.