On the Science Center Plaza, master pianist George Hu &#039;20 plays for his friends, Jonathan Suh &#039;20 (from left), Michael Gaba &#039;20, Arjun Mirani &#039;20, and Elizabeth Yeoh-Wang &#039;20, a joint Harvard/New England Conservatory concentrator. Harvard Common Spaces presented the piano as part of Street Pianos Boston 2016 in conjunction with Celebrity Series of Boston. Kris Snibbe/Harvard Staff Photographer