This artistic research exposition unfolds the shared work between Australian composer Liza Lim and Swedish violinist Karin Hellqvist, from the viewpoint of Hellqvist as performer and co-creator. Together, the artists have created the violin solo work One and the Other (Speculative Polskas for Karin) (2021–22). The Swedish folk music tradition that Hellqvist has carried with her since her childhood, and especially the polska dance, serves as their point of departure.