““Part the tide,” dares Mish Barber-Way of White Lung on “Below,” a ferocious pop song from the longtime hardcore band. Indeed, the sea is splitting for White Lung. “Below,” off the upcoming Paradise, is unlike anything we’ve ever heard from them. In place of the barreling punk rock that Barber-Way and co. have made their name on, “Below” is shiny, soaring goth-pop, a song the singer says is “about”