On his inspirational fourth album, singer/songwriter Dan Sultan urges us to stick together. “My mother’s getting older/She’s frail in her bones and she fights it alone,” he sings on the soulful ballad “Hold It Together.” Like most of the songs on Killer, it’s a meditation on family, faith, and perseverance that’s propelled by sweeping strings, piano, and a gospel choir. Don’t miss “Fire Under Foot,” a stunningly simple song that’s sure to shake your core.