Visit - and play - Sing for Hope’s brightly colored pianos throughout NYC parks and public spaces including Lincoln Center and Central Park. Fifty pianos - each a unique art piece created by a different artist or designer - host impromptu concerts by professionals and amateurs alike. See ten at once in Chase Plaza in the Financial District and download the free SFH Pianos iphone app to find one near you. Later the instruments are donated to NYC public schools,…