Fox Royale make anthemic, jangly indie-rock that sparkles with the same energy as acts like Cold War Kids, Cage the Elephant and Vampire Weekend. Their debut single, “Don’t Call Me When You’re Lonely,” is about a seemingly isolating phenomenon: loneliness, particularly the kind that affects traveling musicians (or traveling workers of any kind) and their partners. So why does the song sound so big, so full? Because Fox Royale have the ability to make music about things like emotional insecurities, breakups and family breakdowns sound almost joyful.