Electronica trio Nerve, led by drummer Jojo Mayer, just put out their fifth collection in a series of number-titled EPs and there’s a familiar voice on the fourth track. Salt Cathedral’s Juliana Ronderos guests on “Calm Me Down,” while her partner Nicolás Losada helps out on the programming. It’s a good showcase for Ronderos’ voice and a mellow alternative that won’t put you to sleep.