BRASS is a ghost orchestra. The three sousaphones play themselves, and appear to be floating. The machines, automated instruments, are the source of the music in a place where man and the gods are no longer around. These sousaphones were developed by Decap, specialists in the creation of automated musical instruments. They ‘play’ passages based on a theme from the Japanese anime film Ghost in the Shell and works by Erik Satie. Their rotating movements create a slow-motion Doppler effect, whereby sounds sometimes come together and then move apart again. In BRASS, Kris Verdonck continues his research into theatre without performers. Given the increasing technologisation of society and the destruction resulting from war and climate change, the possibility of a world without people has never been so likely. The sound nevertheless has human features: breathing, blowing, ‘practising’ and warming up. The instruments are suspended in a dark room, in a perpetuum mobile – their material gleams, but the body they normally rest on is no longer there.