What a wonderful work is Barber's First Symphony! I will argue in a moment that it is America's greatest. If I review our program a bit backwards this time, it's because we don't hear this piece often enough—or nearly at all in San Francisco. (The last outing here was in 1963 under Howard Mitchell). But it was worth the wait, not the least because of James Gaffigan's white-hot performance. Indeed, Barber's concluding timpanic growl brought the audience to its feet screaming, a fitting wind-up for a concert of bravos, and reaffirmed our sense that James Gaffigan has become a major conductor.