For those who may have missed it, on Monday Google celebrated the 360th birthday of Bartolomeo Cristofori (1655-1731) of Padua, with a doodle dedicated to the relatively unknown, at least outside of musical circles, inventor of the pianoforte. By including a scale that changes the volume from piano to forte , the doodler, Leon Hong, has playfully captured the innovative nature of Cristofori’s invention. Watching the instrument maker become more animated as the volume rises is a particularly delightful touch. Perhaps it also signifies the glee that Cristofori feels for at last being celebrated in such a global and prominent way for his creation of a musical instrument that has impacted human culture so profoundly. The Metropolitan Museum of Art here in New York owns one of only three surviving pianos by Cristofori. The other two are at the Museo Strumenti Musicali in Rome and at Leipzig University’s Musikinstrumenten-Museum.