Matthew Mosher, a grad student in the ASU School of Art Intermedia program recently completed the interactive story telling composition, If These Walls Could Speak, which is showing at the Madcap Theater on Mill Ave in Tempe, Monday, 9 May 2011 from 4:00PM to 6:00PM. The wooden box, made of red oak and fitted with an audio recording device holds numerous rocks on the left each with a RFID tag that activates the stone reader on the right. When a fresh stone is placed in the reader it asks the viewer to tell of a memory  relating to a wall, which it records into the stone.  If a stone is placed in the reader that already has a memory associated with it, the device simply plays back that memory for the viewer to hear.