Cerebral horrors from the inimitable Blake Butler.
"The tone had been appearing on the air for weeks. Its tone contained all possible timbre: every sentence ever crammed into each blink. Sometimes the tone would last for several hours, sealing the air against all other motion. It always hurt. It made Person 1180's blood go numb. It made the books fall off the bookshelves and land opened to certain pages, though when she tried to look the words would melt or disappear. No one could say what made the tone or where it came from. Tax dollars were purportedly at work."