This PS 54 student sat down to play the piano in Williamsbridge Oval Park on Tuesday – exactly the kind of spontaneous music-making organizers of the pop-up piano project have in mind. In fact, shortly after this girl left to hang out with her classmates, a professional piano player named Vadim showed up to play. Part of the program is for pianists to demonstrate the pianos and attract curious people who will then want to tickle the ivories themselves. The piano is only in the park for a couple of more weeks, so get going! (Photo by Jordan Moss)