In 2022, Joensen began studying composition, leading to several premieres by established ensembles, including GAGEEGO!, Messiaen Quartet Copenhagen, Petri Sångare, and Jönköping Sinfonietta. His works have been performed throughout the Nordic countries, as well as in Switzerland and Italy. In spring 2025, he will conclude his composition studies with a new piece for the Helsingborg Symphony Orchestra, set to premiere on May 7, 2025, at the Helsingborg Concert Hall.