Paraguay (2011) The liminal surface is a new instrument for the creation of experimental music theater. It is an interactive table-top environment that allows for new forms of expression through the combination of contemporary music and theater, performative sculpture, percussive musical practice, and interactive software-enhanced performance building on an existing collaborative practice between the authors. These table-top miniature stages are outfitted with sensors and actuators as well as sound and video hardware. The tables are designed to accommodate a wide range of sensors that provide our specialized real-time audio/visual software with information about our physical gestures.