Who it’s by: Stefan Sierhej; cartoonist, illustrator and graphic designer (stefanhey.blogspot.com)
Where to find it: Brooklyn Bridge Park, Pier 1, Furman St at Old Fulton St, Dumbo, Brooklyn
About the design: The piano looks like a piece of blue-and-white china covered in iconic New York imagery, including a subway scene and the famous 1932 photo Lunch Atop a Skyscraper.
Who it’s by: James K. Alicea (a.k.a. BlusterOne); graphic designer, painter and cofounder of clothing labels PNB Nation and AndSuns (blusterone.com)
Where to find it: Astor Place, Lafayette St between 8th and 9th Sts
About the design: he freestyle composition was completed without planning or sketching, and includes instructions for the player like "lift to begin" on the cover and "now go" above the keys.
Who it’s by: Arianna Huffington, president, chair, president, and editor-in-chief of The Huffington Media Group, and the Huffington Post team (huffingtonpost.com)
Where to find it: Thomas Jefferson Park, E 114th St between First Ave and Pleasant Ave
About the design: The words Unfold Your Own Myth and GPS for the Soul are painted over swirls of blue, turquoise and purple.
Who it’s by: John Varvatos; designer, TV personality (johnvarvatos.com)
Where to find it: Alice Tully Hall at Lincoln Center, Broadway at 65th Street
About the design: The metallic, industrial look reflects Varvatos’ designs, which are influenced by his love of rock music and culture.
Who it’s by: Sing for Hope Youth Chorus; high school students from all five boroughs (singforhope.org)
Where to find it: Brower Park, Brooklyn Ave at Prospect Pl, Crown Heights, Brooklyn
About the design: The theme “Journey to Greatness” reminds players and listeners to continue to dream big.
Who it’s by: Jessica Browne-White; visual and performing artist (dreamscapesink.com)
Where to find it: Greeley Square Park, Sixth Ave between 32nd and 33rd Sts
About the design: In White's "dreamscape," human beings are part of the instrument. To achieve this effect, she made casts from the body parts of real New Yorkers, including students from an after-school program.