Ari-Pekka Leinonen actively works with sound art installations that use sound projection with multiple loudspeakers. He is also interested in carpenting, the possibility of wooden sculptures as speakers and how sound systems create platforms for movement and sonic storytelling. In 2023, he explored the skyline of Brussels and minor details of the city façade in order to combine the visual explorations and aural discoveries into a conclusive soundpiece ele-gi-eli for his sound triptych consisting of two earlier works L=10 and ||: o / dear<3 :||