Sounds registered by sensitive microphones, ultrahigh-frequency and infra-wave detectors were recorded at nights while the gallery was closed and appropriately processed to represent their tonal and spatial characteristics using human-audible frequencies. During the exhibition, the four loudspeakers located in the gallery reproduced that sounds.

Thus, semi-audible disturbances (transport hum, people talk, dogs bark and growling, air conditioners and water pipes noises, low-frequency subway vibrations, security system check-ins, internet connections) filled in the exhibition area, gained its acoustic characteristics, and transformed the whole space into a sound sculpture accenting the attention to invisible activities and processes.