Due to another set of unexpected health issues, there are some changes to the Festival’s Sunday schedule. Sadly, Sonic Youth is canceling its upcoming tour dates; Lee Ranaldo fractured his wrist. Also, Marva Wright, “The Blues Queen of New Orleans,” recently suffered a stroke. We wish them both a swift recovery! The good news? Dirty Projectors and Mike Posner will now both be taking the stage in Zilker Park on Sunday. ACL Festival lineup planning and booking starts a full year in advance, with the goal of delivering a bill each year that is fresh, eclectic and phenomenal. As the Festival weekend draws closer, reworking and filling-out the lineup becomes more challenging due to existing tour schedules and availability. So, we’re as bummed as you are when a one-of-a-kind band has to cancel their appearance (due to circumstances beyond everyone’s control). But even with all of the switch-a-roos, the 2009 event is sure to rock your socks off. Plus, you’ll get to wiggle your toes in Zilker’s lush, new grass!