They’re back! The classical “super-trio” who dazzled and delighted a capacity Washington Performing Arts audience in February of 2018 returns to the Kennedy Center this March, delving into an all-Beethoven program. As the Washington Post wrote of that earlier performance, “It is undeniably exciting to hear three musicians bursting with such virtuosity and charisma together…. They fed off the electricity in the hall.” Be there this March, when lightning strikes twice.