It’s a rare occasion in music writing that superlatives are justified. Radiohead is one of them. Starting with OK Computer and never stopping, Radiohead have defined—via music—a generation, if not a century, of the human experience. Don’t like The King of Limbs? Listen to it in a year and deny its brilliance. Who else articulates the tedium, isolation, and chaos of modern urban life with such precision? Answer: no one. (KeyArena, Seattle Center, www.ticketmaster.com, 7:30 pm, $66.50, all ages)