Since the David and Goliath tale that surrounded its album ''Yankee Hotel Foxtrot," the Chicago band Wilco has continued to mature musically. In a powerhouse two-hour set at Agganis Arena on Friday evening, the sextet proved that its performance chops have grown with a steady consistency matching its studio efforts.
The band took the stage wordlessly and launched into the Woody Guthrie-penned ''Airline to Heaven" that by its conclusion had
reached the hoedown enthusiasm frequently achieved on its earliest rootsy releases. As singer Jeff Tweedy made the move from acoustic guitar to electric for ''I'm the Man Who Loves You" guitarist Nels Cline pushed Tweedy's increasingly noisy leanings.