One of Cristofori's three surviving pianos is at the Metropolitan Museum of Art in New York, and it has only 54 keys. How many octaves are on a piano? There are seven octaves on a standard piano ...

Follow her on X @KendraMeinert. This article originally appeared on Green Bay Press-Gazette: Keys to the City, a new painted piano festival in Green Bay, is part art, part concert (and it's free) ...