Piano

According to the online wikipedia, piano is a musical instrument played by means of a keyboard that produces sound by striking steel strings with felt hammers. This means that every note in piano has both the steel string and a hammer. If we touch some keys in piano, the hammers will react and hit the strings, and then rebound quickly to let the strings vibrate on a different fixed frequencies. Then the vibrations are transmitted through a bridge to a soundboard that amplifies them. The sounds produced by a piano may results vary depends on how well the acoustic on a room supported. For example, a room with high ceiling or a concert hall could provide better and lighter sound for acoustic piano than a standard or a short-ceilinged room.

A standard piano usually consists of 52 white keys and 36 black keys, as well as 88 hammers and strings for every 88 keys. This includes 7 octaves plus a minor third, ranged from A0 to c8. Many different kinds of piano has developed since centuries ago, such as Grand Piano and an Upright Piano. Grand Piano often used in a concert and both its hammers and strings are placed horizontally so that this kind requires a spacial room while the Upright one takes smaller space because its strings and hammers are placed vertically. But of course, the placing of hammers and strings affects the quality of sound a piano could produce. Strings and hammers that placed vertically often producing softer and lighter sound than if they are placed vertically. That’s why the grand piano is often used in a concert while the Upright one is used for daily rehearsals.