The modern piano was invented sometime between 1698-1700 by Bartolomeo Cristofori of Italy. Bartolomeo named his invention un cimbalo di cipresso di piano e forte ("a keyboard of cypress with soft and loud"), which eventually was abbreviated into “Piano”. Since their invention, they have been used to create some of the most beautiful classical music known to man, and this collection presents you 14 of the most famous pieces ever composed.
http://www.youtube.com/v/OsOUcikyGRkThe Moonlight Sonata, a piano sonata by Ludwig van Beethoven, was completed in 1801. In 1802, Beethoven dedicated it to his pupil, Countess Giulietta Guicciardi.