Yo-Yo Ma and pianist Cristina Pato perform during Ma's Nancy Hanks Lecture on Arts and Public Policy at Washington, D.C.'s Kennedy Center. David Hathcox/Americans for the Arts hide caption

itoggle caption David Hathcox/Americans for the Arts

Yo-Yo Ma offered a graciously warm performance of Tchaikovsky's Andante Cantabile for cello and strings with student musicians. Hilary Scott/courtesy of the Boston Symphony Orchestra hide caption

itoggle caption Hilary Scott/courtesy of the Boston Symphony Orchestra

Cellist Pablo Casals, violinist Fritz Kreisler, pianist Harold Bauer and conductor Walter Damrosch in 1904. Blaine Littell Collection of Walter Damrosch Memorabilia / Carnegie Hall Archives hide caption

itoggle caption Blaine Littell Collection of Walter Damrosch Memorabilia / Carnegie Hall Archives