During his residency at Sonic Acts’ Spatial Sound Studio, BJ Nilsen developed Scalar Towers, co-commissioned by Sonic Acts and INA GRM. Expanding on decades of work with field recording and composition, Nilsen transforms vast architectural and natural structures into resonant instruments. Drawing on recordings made inside a historic water tower in Radio Kootwijk and a feed silo in Friesland, Scalar Towers explores ‘vertical acoustics’ – how sound ascends, reverberates, and reshapes within towering spaces. Immersive, physical, and meticulously detailed, it marks a major moment in Nilsen’s ongoing explorations, and will be diffused by the artist himself.