People watch a backyard concert performed by members of the Staatskapelle Berlin orchestra in Berlin, capital of Germany, on June 23, 2020. (Photo by Peter Adamik/Xinhua)

Members of the Staatskapelle Berlin orchestra perform during a backyard concert in Berlin, capital of Germany, on June 23, 2020. (Photo by Peter Adamik/Xinhua)

People watch a backyard concert performed by members of the Staatskapelle Berlin orchestra in Berlin, capital of Germany, on June 23, 2020. (Photo by Peter Adamik/Xinhua)

People watch a backyard concert performed by members of the Staatskapelle Berlin orchestra in Berlin, capital of Germany, on June 23, 2020. (Photo by Peter Adamik/Xinhua)

A spectator watches a backyard concert performed by members of the Staatskapelle Berlin orchestra in Berlin, capital of Germany, on June 23, 2020. (Photo by Peter Adamik/Xinhua)

People watch a backyard concert performed by members of the Staatskapelle Berlin orchestra in Berlin, capital of Germany, on June 23, 2020. (Photo by Peter Adamik/Xinhua)

Members of the Staatskapelle Berlin orchestra perform during a backyard concert in Berlin, capital of Germany, on June 23, 2020. (Photo by Peter Adamik/Xinhua)