Basic material : var. impacts on bulletproof glass

Forms of presentation / live-set vary depending on the given situation ;
AV live performance, acoustmatic piece, exhibition / installation.


Central to the piece is a bulletproof glass pane measuring 3m x 2m, of a weight of 400kg. The glass has undergone extreme physical forces, the impacts of which created cracks, cuts, and of course : sounds.
Prepared with special sensors (accelerators) used normally to determine the behavior of certain materials in crash-tests for cars, the glass underwent a series of predetermined physical impacts. These sensors, superior to the capability of standard microphones, perceived a myriad of unique textures within the infrasonic field, sounds which require speeding up in order to be heard. Other recordings taken in very high resolution captured the ultrasonic spectrum (beyond the range of the human aural perception) that needed slowing down in order to be audible.


These recordings are the acoustic material of the piece. The predetermined impacts applied to the glass followed a succession that, on one hand provided us with the acoustic material we needed, and on other, led to an ongoing, aesthetically conscious destruction of the glass. Our aim was to conserve each step of the glass’s brake-down (deconstruction), and then reconstruct and transform the sound of the glass-pane being destroyed into an abstract piece based on broken security-glass.


As an object, the glass pane represents the omnipresent displays of our time. It is a metaphor for a society intrinsically linked to the screen. We receive not only information through screens, we also feel save as long as we whatch the world through a display – it has become an assurance of safety. In times where the call for ‘secutrity’ is terribly loud, the piece reminds us of nothing but the impossibility of safety.


‘ composing means : building an instrument ‘ (Helmut Lachemann)