terrain study is a piece for solo performer and virtual reality system, which seeks to work with the possibilities and limitations of VR outside the usual context of a realistic 3D environment. The player starts in a simplistic 3D world consisting of only three basic elements: a randomly generated, slightly undulating terrain; a texture mapped cube which creates the illusion of an endless horizon (a so- called sky box); and several metal-like spheres hovering above the ground which the player can interact with musically. By and by, the visual and acoustic representation of the game world is manipulated by the sounds produced on the instrument, leading to bizarre structures and surreal perspectives, eventually questioning the division of subject and world.