It took an LP and a string of self-released singles before the buzz around Misun became too loud to ignore. Since 2012, the DC-based band has been steadily cultivating a following, enrapturing listeners with their distinctive style of vintage ’60s rock and hip-hop, a sound they branded as “aquawave.” But their latest release, Superstitions, shows off their poppier side. The lead single of the same name is equal parts infectious and odd, with an off-kilter rhythmic character that shouldn’t work but somehow does. It’s in that uniqueness where “Superstitions” stands out. Fans might be missing their retro sound, but with “Superstitions,” Misun proves they’re heading into the future.