Musical Instruments, tools used to expand the limited scope of musical sounds such as clapping, stamping, whistling, humming, and singing that can be produced by a person’s unaided body. Throughout the world, instruments vary greatly in purpose and design, from natural, uncrafted objects to complicated products of industrial technology. Base on those specialized implements intended for performing the world’s conventional folk, popular, and classical musics, musical Instruments can be classified in different ways. For example, by their primary materials (metal, wood, earthenware, skin), their social status and appropriate setting (church, military, parlor), their musical role (rhythmic, melodic, chordal, drone) or conventionally distinguished among winds, strings, and percussion.
Guitar can be classified as a musical instrument of string family, from it’s primary material, it can be categorized into wood instrument, and from it’s musical role, it can be classified as a rhytmic instrument. This instrument have a flat, waisted body with a round sound hole and a fretted neck along which six strings run. The strings are fastened at the top of the neck to tuning screws and at the other end to a bridge glued to the instrument’s sound board. The top three strings are usually made of gut or nylon, the others are metal. The player’s left-hand fingers stop the strings at the appropriate frets to produce the correct pitches, the right-hand fingers pluck the strings. Some metal-strung guitars are plucked with a small flat plectrum (a small piece of wood, ivory, metal, shell, or plastic, held in the hand and used to pluck the strings), or pick. Guitars feature various tones, and in some countries the number of strings varies. The Hawaiian, or steel, guitar is laid across the knees of the player, who stops the metal strings by gliding a metal bar along the neck. The electric guitar, developed for popular music, usually has a solid, nonresonant body. The performer electronically amplifies and manipulates its sounds.