Even though Wilco's latest, Sky Blue Sky, is as stuffed with ideas as the band's best work, it sometimes meanders in an unflattering way. But those same songs will explode onstage, where Wilco shine as one of today's best live bands. They improvise recklessly and sometimes crash spectacularly, which makes their performances a little riskier and a lot more exciting. (Marymoor Park, 6046 W Lake Sammamish Pkwy NE, Redmond, 628-0888. 7 pm, $38.50, all ages.)