Tampa Bay Blues Festival: Three days of music under the stars in St. Petersburg's Vinoy Park, Friday through Sunday. It features Bettye Lavette, Jimmie Vaughan, JJ Grey and Mofro and more. $30 per day, $75 for three days, 12 and younger free. (727) 502-5000. After- party each night at NOVA 535 Art Lounge ($20).