A guitar is a plucked string musical instrument. It is one of the most popular instruments in modern music and is used in a wide variety of genres including rock, pop, folk, country music, and more. The guitar has a wooden soundboard, neck and fretted fingerboard, and usually has six strings that are played with the fingers or a plectrum. The sound is produced when the strings are struck or rubbed with the fingers, causing vibrations in the soundboard. There are several types of guitar such as electric guitar, acoustic guitar, classical guitar, among others.