The installation concept of >HoerRoom< is a “point and line to plane” sculpture, which uses points and lines to define an interactive plane that becomes a playable virtual space as visitors interact with it. The installation makes space “variable” by using a series of newly developed interactive light and sound objects that when mounted on elastic cables function as “media pendulums”. To create the installation, a low-resolution matrix of points is mapped onto the space. Then, odd groups of vertically related points are selected and paired. These points are extended into lines using elastic cables upon which the media-pendulums are mounted at varying heights. Together the lines of the elastic cables mark the passive form of the space and when the cables are “plucked” into motion by the visitors, the lines swing back and fourth in harmonic motion, emit sound and light and delimit the active form of the space. A space within a space.