Observations: (since I won’t be in class tomorrow)
For my site (personal kitchen), it is very simplistic. The signal sound of the site is the refrigerator air conditioning sound that occurs once in a while. The keynote sounds include the noises of kitchen light and sounds of drains and water sewage that came from behind the kitchen wall (probably neighbors cooking and using the sink). The sound marks of the main site, which is inside the fridge, are sounds of cooling fan and lightbulb buzzing. Another signal sound is the opening and closing of fridge, or the sound of ripping the fridge door magnets apart.