I play the piano
The stringed musical instrument?
Yes and I started when I was 4, it's fun and rewarding as a pass time
The stringed musical instrument?
It has strings, but a lot of the time you can't see them as they're covered to create a different sound
It was actually invented in 1700, so it is quite old!
They say the older something is that's still around, the longer it will survive
Piano
The piano is an acoustic, stringed musical instrument invented in Italy by Bartolomeo Cristofori around the year 1700 (the exact year is uncertain), in which the strings are struck by hammers. It is played using a keyboard, which is a row of keys (small levers) that the performer presses down or strikes with the fingers and thumbs of both hands to cause the hammers to strike the strings. 
The word piano is a shortened form of "pianoforte", the Italian term for the early 1700s versions
powered by the musician's legs as he walks. It's built with the materials that Leonardo would have had on hand, including wooden pegs and gears run by twine. In the folio of Leonardo, you can see that the instrument has a harness. So it was invented as a way to play a stringed instrument while marching. The leg pumps a wooden motor, which moves a long loop of horsehair through the instrument. When the player presses the keys, the strings move up against the loop. Edoardo Zanon of