Sons of an Illustrious Father was playing their electrifying track “Extraordinary Rendition” as a line down the block inched into Maggie Mae’s in Austin. The song set the tone: a thumping bass line played on a keyboard by Josh Aubin (bearded, wearing a speedsuit), alternating with a deliberate hiss on the hi-hat. The back and forth rhythm was intensified by the chords from guitarist Lilah Larson, fierce in black jeans, black T-shirt, Joan Jett cool. Over the top were the plaintive lyrics from the drummer, who wore what I believe was a solid-tone green dashiki but read from the floor like a boxer’s slick robe. The band treated these outfits as uniform, and wore them at every show at SXSW.