With a vast discography going back to the mid-1990s, Steven R. Smith is a man of many monikers — he’s released music as Hala Strana, Ulaan Khol, Ulaan Markhor, Ulaan Passerine, Ulaan Janthina. Don’t stress. Whatever name he goes by, Smith is nothing if not consistent. He’s an expert craftsman, a maker of (usually) guitar-based instrumentals that build wide-open sonic vistas upon sturdy rhythmic foundations. While Smith is a more than capable one-man band, on the latest Ulaan Passerine LP, Sun Spar, he drafts some outside talent to fill in the frame.