clicking of heat pipes...rattle. tink. clink. metallic. stops. come back again, speed/rate of hits changes, very quiet suddenly, tiniest rattle in the background, a few louder hits, back to quiet. Unpredictable.
hum of refrigerator...warm, soft, buzz, vibration, wave undulating in out in out, steady volume.
there is some sound whose orgin I can not place. almost a hollow knock. water drop perhaps? it is slightly irregular in rhythm.
soft crack of my neck as I lift my head - little after delay pricks
the sound of keys typing. irregular rhythm. plastic, mid-high percussive, soft.
odd gurgle from my inside...strange. Like a quick sound sweep/delay. Range of highs and lows.
soft scratch of my hand on my back. itch.
deep breath, sigh, release. air push. pad.
the sound of air. empty. reverb. full.
whichever sound I focus on becomes the center of the room, supported by all the other background sounds. I can start to imagine a song. Particularly with the refrigerator and the heating pipe. Their frequencies and patterns coexist nicely.