Have you heard of this project?
They put pianos out in public places for people to play as an art installation.
Right now they have 60 pianos spread around NYC.
"In a collaboration between artist Luke Jerram and charitable organization Sing for Hope, 60 newly refurbished pianos were installed in public spaces throughout New York City.
Jerram has been bringing fleets of pianos to the parks, squares, bus stops, train stations, plazas, churches, post offices, zoos, ferries and bridges of major metropolises since 2008. Before Monday's installation, he had already installed 167 pianos in eight cities worldwide, including Sao Paulo, Brazil; Sydney, Australia; London, England; and Barcelona, Spain."