Guitar.

Guitar
Guitar is a string instrument, being playing played by plucking fingers. The guitar consists of the body and 6 strings which are attached to the bottom and the rigid neck. Guitars are constructed always from various number of wood. The strings in guitar are made of nylon and metal. Guitars are divided on two groups acoustic and electric.

Acoustic is one of the eldest instruments it was used thousands of years before. Sound of acoustic guitar depends on vibration of the strings which amplified by body of the guitar. There are two types of that guitar acoustic and classic. Acoustic guitar is made of metal strings which give very hard metallic sound, this guitar first was made to play accompaniment because of very audible sound. Classic guitar is made of nylon strings which give soft sound, this instrument was made to play solo in the background of his guitar friend.
Electric guitars, introduced in the 1930s, rely on an amplifier that can electronically manipulate tone. Early amplified guitars employed a hollow body, but a solid body was found more suitable. Electric guitars have had a continuing profound influence on popular culture. Guitars are recognized as a primary instrument in genres such as rock, punk rock, blues, reggee, jazz etc.
Before the development of the electric guitar and the use of synthetic materials, a guitar was defined as being an instrument having "a long, fretted neck, flat wooden soundboard, ribs, and a flat back, most often with incurved sides". The term is used to refer to a number of related instruments that were developed and used across Europe beginning in the 12th century and, later, in the Americas. These instruments are descended from ones that existed in ancient central Asia and India.