Czech-born Jan Dismas Zelenka was by all accounts one of Baroque music’s trickier customers—fervently religious but completely lacking in courtly graces. Combine this with a tendency to throw out the rulebook when it came to harmonic convention and it’s hardly surprising that he was underappreciated in his lifetime. Yet here is some of the most pungently exciting writing of the Baroque, as individual as that of his near-contemporary, Johann Sebastian Bach. The very opening of Zelenka’s Litaniae sets out his stall and Robert King and his eponymous Consort make the most of its startling qualities. But he is a composer to tug at the heartstrings too, nowhere more so than in the Salve regina, ravishingly sung by a young Carolyn Sampson.