A rumour swirls around Johannes Brahms’s Liebeslieder Walzer, namely that the lyrical pieces grew out of his frustrated passions for Clara Schumann—the wife, unfortunately for Brahms, of composer Robert Schumann. We can’t confirm the truth of that, but we can tell you it would make a pretty darn sweet Valentine’s Day treat—one that will show your beloved how cultured you are—to go to Vancouver Cantata Singers’ afternoon performance of the lovelorn work, as well as John Greer’s and John Corigliano’s responses to it, in the cozy Orpheum Annex (on Sunday [February 14]).