People enjoy music during a free outdoor concert by the New York Philharmonic in Central Park of New York, the United States, on June 13, 2018. The New York Philharmonic Concerts in the Parks has become a popular summer event in New York as people can enjoy music in the natural surroundings. (Xinhua/Wang Ying)

People enjoy music during a free outdoor concert by the New York Philharmonic in Central Park of New York, the United States, on June 13, 2018. The New York Philharmonic Concerts in the Parks has become a popular summer event in New York as people can enjoy music in the natural surroundings. (Xinhua/Wang Ying)

People enjoy music during a free outdoor concert by the New York Philharmonic in Central Park of New York, the United States, on June 13, 2018. The New York Philharmonic Concerts in the Parks has become a popular summer event in New York as people can enjoy music in the natural surroundings. (Xinhua/Wang Ying)

Musicians perform at a free outdoor concert by the New York Philharmonic in Central Park of New York, the United States, on June 13, 2018. The New York Philharmonic Concerts in the Parks has become a popular summer event in New York as people can enjoy music in the natural surroundings. (Xinhua/Wang Ying)

People enjoy music during a free outdoor concert by the New York Philharmonic in Central Park of New York, the United States, on June 13, 2018. The New York Philharmonic Concerts in the Parks has become a popular summer event in New York as people can enjoy music in the natural surroundings. (Xinhua/Wang Ying)

People enjoy music during a free outdoor concert by the New York Philharmonic in Central Park of New York, the United States, on June 13, 2018. The New York Philharmonic Concerts in the Parks has become a popular summer event in New York as people can enjoy music in the natural surroundings. (Xinhua/Wang Ying)