*100 copies limited edition* Oorsprong is a tube, a line in a forest, a sound sculpture. Acoustics to be revealed. Activated by entering, it becomes a giant flute producing a tone that is so low, the body crashes into waves of pure pressure instead of sound. Untranslatable energy. Cerchi Cerchi is a quest in a forest to find traces of that untranslatable sound, its impact, its imprint, its memory. A hide and seek in which the body is concealed in the instrument, becoming its second voice, hidden but exposed. In Oorsprong, a sound installation by Hans van Koolwijk, we hear Lukas De Clerck playing Kaval, one Organ pipe, bass recorders and his voice, revealing the different acoustic qualities of the space. The interactions were recorded by Stijn Demeulenaere.