Piano is string instrument of the orchestra that is played by stricken the key of the instrument. The modern model of the instrument have a keyboard which is made of 88 rows of black key, 52 row of white key and 36 shorter black keys. The string instrument is sounded when the keys are struck by both hands to create a melody. The invention of the piano is credited to a harpsichord maker named Bartolomeo di Francesco Cristofori. The piano was invented in Padua, Italy in 1709 by Bartolomeo who was an expert harpsichord maker, and was well accustomed with stringed keyboard instruments. The new instrument began to gain popularity in Italy after an enthusiastic article written by Scipione Maffei in 1711 advertise the good and graphic of the instrument
