The piano is heavy stable musical instrument that forms part of the chord or else the keypad. It is the largest in size after the body organs.
The executive called pianist and plays with keys. Each key is a different twist. Although most believe played only classical music can be used in jazz, blues, rock and roll and pop music.
The pianos are divided into two basic categories. The upright pianos, the strings of which are brought into vertical alignment with the level of keys and so-called grand pianos, the strings of which are arranged horizontally relative to the ground.