Cellist Yo-Yo Ma and conductor Esa-Pekka Salonen enjoy an ovation after the world premiere of Salonen’s Cello Concerto on March 9, 2017, at Symphony Center in Chicago. Cellist Yo-Yo Ma and conductor Esa-Pekka Salonen enjoy an ovation after the world premiere of Salonen’s Cello Concerto on March 9, 2017, at Symphony Center in Chicago.