By David Mermelstein [WSJ, 26 May 2010]

Surely every year is eventful for the seemingly indestructible and certainly indefatigable Plácido Domingo, who, at age 69, will sing the important role of Siegmund in Wagner’s “Die Walküre” beginning Sunday in Los Angeles. But even with 2010 less than halfway over, this year has been one of unusual activity and high drama for Mr. Domingo, the world’s only superstar tenor and a conductor and opera administrator to boot.