Brent Grulke, 51, a Builder Of South by Southwest Fest

Brent Grulke, who was instrumental in transforming South by Southwest , the annual music festival in Austin, Tex., from a regional event into a sprawling, sought-after and blissfully loud proving ground for musicians from around the world, died on Aug. 13 in Austin. He was 51.His death, from a heart attack following oral surgery, was announced by the festival.