I just have to tell you almost EVERYTHING about music, don't I, PeeDud?
"Piano" is simply a "shortened" form of the original Eye-tallion word "pianoforte" --- the name of the big black thingy with the rows of white thingies on top? You know what I mean?
NO! NO! NO! I am NOT talking about Ray Charles, you dummy! The big, black thing that HE made music on.
(Don'tcha reckon they're really paying you for piano sheet music? Seriously?)