Two lovers who can only be together by ceasing to be people, they become butterflies, because the world will not let them be anything else. The violin tells this story the way only a violin can: by becoming the ache itself, by bending notes the way grief bends time. Lu Siqing plays it as if the instrument remembers being something older, something with silk strings, something that has always known this particular sadness. The concerto is Chinese Romeo and Juliet, but that comparison is too small. It is every love that required transformation to survive, which is to say, every love.