A piano is a keyboard instrument. When a key is pressed or struck, a hammer hits one of the many strings inside the instrument. The instrument was invented around 1700 and was originally called a “pianoforte” which means “quiet loud”. It got this name because it was the first type of keyboard instrument that enabled the performer to change dynamics by playing more forcefully or more gently! Modern pianos have 88 keys in total. Its lowest pitch is lower than a human voice can go and its highest pitch is higher than a human voice!