The ukulele is a small, four-stringed instrument that originated in Hawaii in the 19th century, influenced by Portuguese instruments like the machete. It typically comes in four sizes: soprano, concert, tenor, and baritone, each offering different tonal qualities and ranges. The ukulele is made from wood, with strings usually made of nylon, producing a bright and cheerful sound. Its compact size and relatively simple playing technique make it accessible to beginners, while its expressive range attracts professional musicians as well. Popular in Hawaiian music, the ukulele has since gained global popularity in genres like pop, folk, and indie music.