Yoneda Lemma (a.k.a. You Need a Lemon, sometimes Yoni Dilemma) is a quasi-causal brainchild for abstract exploration, a jumping off point for experimental research and a platform for productions, plotted by Canadian-born archaeologist, composer, producer, and feminist thinker Katrina Burch. Lemma’s complex harmonic layers dig into sound, shifting sonic elements from one fiction to another. When she’s not making music or writing, Burch is in the field excavating the Jequetepeque desert of Peru or conducting ethnoarchaeological research in Southeast Asia. She has exhibited her work at V4ULT, Berlin; Le Cube, Paris; and Tate Britain, London, among others. Burch has published with the Passive Collective, MIT Press, and Merve. She is a collaborator in the collectives Laboria Cuboniks, d-n-e, LATRINE, INFRA, and Asounder.