Slide guitarists are musicians who are well-known for playing guitar with a "slide", a smooth, hard object, held in the fretting hand and placed against the strings to control the pitch. [1] Beginning with guitarists in the American South and Hawaii in early 20th century, [2] slide guitar styles have developed in a variety of musical settings, including blues, country, and rock. [3] Most slide guitarists may also perform with guitars using traditional fretting techniques; additionally, some also play various types of steel guitars. [4]