Shara Worden is a remarkable singer. The leader of My Brightest Diamond, who play tonight at Lincoln Hall, she earned a bachelor’s degree in opera at the University of North Texas. That kind of classical technique hardly guarantees that someone will know what to do with such a voice in rock music, though—in fact, it’s usually a drawback. But Worden, who first attracted notice as a backup singer for Sufjan Stevens, is an exception. The two records she’s made as My Brightest Diamond—Bring Me the Workhorse (2006) and A Thousand Shark’s Teeth (2008), both released by Stevens’s Asthmatic Kitty label—are among my favorite pop-rock recordings of the past decade.