The Sound of the Non-Correlational How do we theorize the relationship between the human and the nonhuman? How should this relationship be conceptualized within the field of sound studies? What are the political and conceptual stakes of how we posit the human and the nonhuman? This essay will work to answer each of these questions by examining one of the most powerful theorizations of the nonhuman and its challenge to the post-Kantian tradition of philosophy, Quentin Meillassoux’s speculative materialism, in relationship to a piece by one of the most celebrated post-classical composers of the last, twenty years, William Basinski. The piece, On Time out of Time, incorporates the sound of two black holes merging 1.3 billion years ago. As such, it stages on a sonic level an encounter with what Meillassoux terms an “arche-fossil” or “materials indicating the existence of an ancestral reality or event, one that is anterior to terrestrial life.“