Since 1972, Bill and Mary Buchen have collaborated to integrate the sonic and visual arts as a multi-disciplinary form they define as Sonic Architecture. They have designed sound installations for museums, galleries and public sites throughout the United States. Large-scale public works include: Sound Parks and Science Playgrounds, Aoelian (wind) Harps and acoustic designs for urban and natural environments. Their pursuits center on the study of acoustic phenomena examined through its applications in science, architecture, ecology, and diverse world cultures. As composers they create metaphorical soundscapes for installation environments. Sound sources for their investigations utilize electronic technologies, computer-aided design and field recordings.