On Sunday afternoon at Ultraschall Berlin, Ensemble Apparat will perform a program of rarely performed works by Enno Poppe and Jorge E. López as well as the world premiere of a new work for brass ensemble and electronics by Joanna Bailie on the Radialsystem stage. For this concert, the ensemble is expanding its line-up from a core quartet to a nine-piece brass ensemble. The program will be complemented by the continuation of an ongoing collaboration between Ensemble Apparat and the Danish sound artist and performer Ragnhild May, which focuses on a large, modular brass instrument constructed by May and brought to life by Apparat.