Feedback 25 (with The Crane Wives and The Concussions at Founders Brewing), Casting Crowns, Joe Hertler & The Rainbow Seekers, The Murlocs, Political Lizard, Mason Jennings, a Pathway to the Pasture band contest, the Spring ReggaeFest and more help fill out the week of concerts. And check out this week’s ticket giveaways for Talib Kweli and Twin Peaks, plus peruse the delightfully diverse Under-the-Radar Picks.