The Austin, TX-based Justin Sweatt writes, records and performs under the moniker Xander Harris. And although he takes his stage name from one of Buffy the Vampire Slayer’s friends, a track like “Vultures of Tenderness” off his latest effort, The New Dark Age of Love buzzes and throbs with a menacing, paranoid and yet cinematic feel. It sounds as though it could easily be the soundtrack of a gory horror film.