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Greg Kot

Wilco brings more mature sound to Miami

Wilco leader Jeff Tweedy is negotiating with the unexpected again. On this recent weekday morning, his 10-year-old son's school has closed due to a water main break, so Tweedy is driving him back to their Chicago home, juggling an interview with a reporter and other demands of being a famous rock artist while dealing with his youngest son's sudden liberation. "Yeah, he's having the best day of his life," Tweedy says. "We had to re-arrange everything."

Then again, Tweedy and Wilco -- who play the Fillmore Miami Beach on Monday -- have been re-arranging their music for more than 10 years, against a dramatic and sometimes controversial history. That story has...