Swedish House Mafia (11:30 Friday, Coachella Stage): The three-DJ tandem Swedish House Mafia is one of the fastest-rising groups in electronic music, a group that’s dominated European charts (as well as the US Dance chart) on the strength of bass-blasting singles like “Miami 2 Ibiza” and “Antidote.” I know what you’re saying, but if there’s one act that may justify ...