Upright piano adopted the design scheme of staggered strings, which effectively saved the height and thickness. The height of upright piano used to be 2.4 meters.
Grand piano is used for large-scale performances or professionals, and grand piano is 2.7 meters long.
Development history:
The predecessor of piano is harpsichord, also called harpsichord. It is basically the same as the internal principle of a piano. A soundboard and many taut strings are installed inside the piano body. The difference is that the hammer of a piano strikes the strings, while plucking an ancient piano plucks the strings with a feather plucker.
In addition, there is a keyboard instrument of the same clan as them-the clavichord, which is also an instrument equipped with a percussion device, making sounds with a copper hammer; It was not as widely used as plucked clavichord, and was mainly used in aristocratic families at that time.
17~ 18 century, the clavichord played a very prominent role in the music life at that time, which can be said to be the heyday.
By the beginning of18th century, the music in continental Europe developed rapidly, and the clavichord with weak volume could not meet the needs of musicians at that time, and was gradually replaced by the piano with high volume.
The inventor of the piano is Bartholo O 'Cristofoli, a musical instrument manufacturer in medici family, Florence. /kloc-in 0/709, he made an guqin with varying strong and weak tones based on the plucked clavichord.
On the piano, he used the mechanical device of striking the strings with a hammer instead of the mechanical device of plucking the strings with an animal feather tube in the past, thus making the piano sound more expressive and richer in sound levels, and directly controlling the sound changes by touching the keys with his fingers.
The above contents refer to Baidu Encyclopedia-Piano (a keyboard instrument in western classical music).