The piano is a keyboard instrument, which uses the keys to pull the hammer and beat the strings. Since the end of18th century, the piano has been the most important keyboard instrument in Europe and America. Piano originated in Europe. /kloc-At the beginning of the 8th century, an Italian named BartolommeoCristofori invented a keyboard instrument similar to the modern piano. It has a history of more than 300 years. From the development history of keyboard instruments, modern piano evolved from the harpsichord and harpsichord, the predecessors of piano. From the end of16th century, harpsichord and clavichord gradually became popular, and were not replaced by piano until the end of18th century. The piano first appeared in 1709. At that time, it was a complicated and expensive musical instrument, and only the royal family and nobles could touch it. At first, some very prestigious musicians such as JohannSebastianBach (johann sebastian bach) didn't appreciate the timbre of the piano. But after only half a century, the piano has become more and more popular. When creative musicians like Mozart, Brahms and Liszt threw themselves into the arms of the piano, their enthusiasm was instantly detonated. At that time, these cutting-edge pianists were like "rock stars", and their great influence was icing on the cake for music creation and injected great power into the development of piano. The royal family and nobles have incorporated the piano into their bands, and people can sit around the piano and listen to the latest beautiful melody. The rise of the industrial age gave birth to a new social stratum-the middle class, in which the piano is very popular. Among them, grand piano is a symbol of social status and is usually used in orchestras, while upright piano is more popular with families.