This paper discusses the development of artistic collaboration during the global lockdown, related to the COVID-19 pandemic. The art work under study involves the author’s practices of ecological sound art and intercultural collaboration in collaboration with Canadian composer and improviser John Oliver. A primary outcome of this work was the album Isolation Journal, released in 2020, in the midst of the pandemic. One feature of Isolation Journal was how it revisited site-specific recordings made in Vietnam, on the countryside north of Hanoi, for an installation made by Östersjö in collaboration with Nguyễn Thanh Thủy and Matthew Sansom [Östersjö, Stefan, and Thanh Thủy Nguyễn. 2016. “The Sounds of Hanoi and the After-Image of the Homeland.” Journal of Sonic Studies 12. https://www.researchcatalogue.net/view/246523/246546]. Through remote interactions, and by building a complex sampler instrument using Östersjö's recordings of Aeolian đàn đáy, a traditional Vietnamese lute, as well as field recordings from the site, Oliver and Östersjö created the album Isolation Journal through remote interaction. This in turn became a fundamental building block when the author's Vietnamese/Swedish group The Six Tones took the initiative to develop a scene for telematic performance at Manzi Art Space in Hanoi. This series started out with a concert with John Oliver, The Six Tones and guest performers from Hanoi in July 2020. Building on audio and video documentation, as well as on qualitative interviews with the participating co-performers, an analysis of the emergence of discursive voice [Gorton, David, and Stefan Östersjö. 2019. “Austerity Measures I: Performing the Discursive Voice.” In Voices, Bodies, Practices: Performing Musical Subjectivities, edited by Catherine Laws, William Brooks, David Gorton, Nguyễn Thanh Thủy, Stefan Östersjö, and Jeremy J. Wells, 29–79. Orpheus Institute Series. Leuven: Leuven University Press] is drawn from these two internally linked artistic projects. The paper develops the analytical framework of tele-copresence, a synthesis of the contrasting concepts of telepresence and copresence, as a means for analysing the virtual presence which emerges through such remote musical interaction.