Glenn Bach is a writer, visual artist, and composer who maps the sonic terrain of the city. Encompassing the act of walking, his work engages in a poetic dialogue between text, photography, and sound collage. By liberating ordinarily inaudible sounds from the apparent silence between sonic events, he embraces the substance of negative space in an alchemical exploration of the deep aural signature of the urban landscape. His work appears in several online collaborations, and is archived on his website, www.csulb.edu/~gbach.