Facing Bach's St. Matthew Passion, I often feel a combination of anticipation and dread. It's a great work, profound in its humanity and spirituality, with sublimely beautiful music. But it's a long haul, and if it's not a good performance, well, I'm stuck. And it can be not-good in various ways: either too solemnly pious or too much an exercise in musical style rather than emotional drama. A new DVD recorded in 2010 at Berlin's great concert hall, the Philharmonie, would be of major interest under any circumstances.