There are 88 pianos – representing each of the 88 keys on a piano-- scattered through the streets of the five boroughs of New York City. For two weeks in June, the organization Sing for Hope commissions 88 different artists to each design and paint a piano, which are available for anyone to play. It's one of the city's largest displays of public art. During the year, Sing for Hope and its volunteers perform and teach music to people of all ages across the city. After they are on display, the pianos are donated to deserving schools, organizations and community centers.