Antonia Barnett-McIntosh (Kāi Tahu) is a composer-performer, sound artist, editor, and curator. She collaborates in cross arts spaces, gently tapping on the borders between speech/music, performance/rehearsal, composition/writing, and juxtaposing the formalities of presentation with the aesthetics of failure. She has collaborated extensively with musicians, dancers, visual artists, poets, theatre and filmmakers.

Antonia has presented work in Europe, India, Australia, Aotearoa, and the U.S.A.: at Barbican, Kings Place, Wigmore Hall, Spike Island, Café OTO, Theater im Aufbau Haus (TAK), DAAD Galerie; as part of City of London Festival, Festspillene i Nord-Norge, Capital Fringe D.C., 4 Days Arnolfini, Weisslich, Kammer Klang, and BBC 3’s Hear & Now: Why Music?; at residencies Hubbub, Wellcome Collection, London (2014–16), Morni Hills, Chandigarh (2017), Te Kōkī-NZSM (2018–19), Q-O2, Brussels (2019), Bundanon Art Museum, NSW Australia (2023), and EMPAC, Troy New York, U.S.A. (2023–24).