Swiss artist Zimoun creates spellbinding audio-based installations. This one in particular, using towers of cardboard boxes really floats my boat. Such a warm and strangely soothing sound and no computers involved. Just tons of tiny motors gently beating and scraping on the re-purposed corrugated paper products. I could listen for hours.
 

 
Bonus: An overview of Zimoun’s large body of similar work:

 
Thanks John Burton !